Trees from Seminars 11 to 20
By Len Phillips
Go directly to the tree information by clicking on the title below
By Len Phillips
Go directly to the tree information by clicking on the title below
The following 10 trees from previous Seminars have been written with information gathered from personal observations of the author, living in Massachusetts, Zone 6, and information provided by J. Frank Schmidt & Son.
Golden Desert European Ash
Golden Desert European Ash is a small rounded tree with bright golden twigs and young stems, outstanding yellow color throughout the year. Foliage emerges yellow, becoming yellow-green in early summer and developing a golden cast in late summer.
Trade Name: ‘Golden Desert®’ European Ash
Botanical Name: Fraxinus excelsior 'Aureafolia'
Parentage: Selection from the species
Family: Oleaceae
Height: 20'- 30'
Spread: 18'
Form: Round oval shape, broad spreading outline
Bloom Period: Early spring
Flower: Green or purple, sterile
Fruit: None
Spring Color: Black fuzzy buds
Summer Foliage: Yellow green in summer, many fine serrated, narrow leaflets
Autumn Foliage: Very bright golden-yellow in spring and fall
Winter Color: Golden twigs and black buds all winter long
Bark: Golden color year round
Habitat: Native to Europe and Asia Minor
Culture: Tolerates flooding, urban pollution, tolerates acid soil and thrives on alkaline soils
Hardiness Zone: 5 – 9
Growth Rate: Rapid in youth, slows down with age to less than 8” per year
Pest Resistance: More susceptible to borers than other ash
Storm Resistance: Excellent
Salt Resistance: Excellent
Planting: Easily transplanted bare root, excellent choice for a CU-Structural Soil
project
Pruning: Fall pruning only
Propagating: Budded to F. pennsylvanica understock
Design Uses: Excellent street tree and accent specimen
Companions: Use with shrubs such as Taxus, evergreen Euonymus, and perennial Geranium Other Comments: Smaller than other ash, excellent in New England, large landscapes, specimen tree, parks, street tree, not recommended for planting in areas where EAB has been or is expected.
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Golden Desert European Ash
Golden Desert European Ash is a small rounded tree with bright golden twigs and young stems, outstanding yellow color throughout the year. Foliage emerges yellow, becoming yellow-green in early summer and developing a golden cast in late summer.
Trade Name: ‘Golden Desert®’ European Ash
Botanical Name: Fraxinus excelsior 'Aureafolia'
Parentage: Selection from the species
Family: Oleaceae
Height: 20'- 30'
Spread: 18'
Form: Round oval shape, broad spreading outline
Bloom Period: Early spring
Flower: Green or purple, sterile
Fruit: None
Spring Color: Black fuzzy buds
Summer Foliage: Yellow green in summer, many fine serrated, narrow leaflets
Autumn Foliage: Very bright golden-yellow in spring and fall
Winter Color: Golden twigs and black buds all winter long
Bark: Golden color year round
Habitat: Native to Europe and Asia Minor
Culture: Tolerates flooding, urban pollution, tolerates acid soil and thrives on alkaline soils
Hardiness Zone: 5 – 9
Growth Rate: Rapid in youth, slows down with age to less than 8” per year
Pest Resistance: More susceptible to borers than other ash
Storm Resistance: Excellent
Salt Resistance: Excellent
Planting: Easily transplanted bare root, excellent choice for a CU-Structural Soil
project
Pruning: Fall pruning only
Propagating: Budded to F. pennsylvanica understock
Design Uses: Excellent street tree and accent specimen
Companions: Use with shrubs such as Taxus, evergreen Euonymus, and perennial Geranium Other Comments: Smaller than other ash, excellent in New England, large landscapes, specimen tree, parks, street tree, not recommended for planting in areas where EAB has been or is expected.
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
His Majesty Cork Tree
Fast growing, upright spreading and hardy, His Majesty Cork Tree is a seedless selection that features a better branching habit than the species.
Trade Name: ‘His Majesty™’ Cork Tree
Botanical Name: Phellodendron 'His Majesty'
Parentage: Introduced by Harold Pellett of the University of MN and the Landscape
Plant Development Center, hybrid of P. sachalinense and P. amurense
Family: Rutaceae
Height: 35’ – 40’
Spread: 30’ – 35’
Form: Broadly oval shape
Bloom Period: Late May to early June
Flower: Male only
Fruit: None, generally seedless
Summer Foliage: Medium green leaves
Autumn Foliage: Bright yellow in late fall
Winter Color: Bark provides winter interest
Bark: Light brown bark with darker twigs, ridged and furrowed like cork
Habitat: Species native to northern China, Manchuria and Japan
Culture: Transplants easily, tolerates a wide range of soil and urban conditions
Hardiness Zone: 3 – 9
Growth Rate: Rapid
Pest Resistance: Excellent
Storm Resistance: Fair to good
Salt Resistance: Fair
Planting: Transplants easily bare root because of fibrous roots, excellent choice
for a CU-Structural Soil project
Pruning: Best in late summer
Propagating: Budded onto P. amurense understock
Design Uses: Can be used in large areas, street tree use only when setback from curb
Companions: Looks good with most general landscape plants
Other Comments: Broadly oval shape
Available From: Most large nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Fast growing, upright spreading and hardy, His Majesty Cork Tree is a seedless selection that features a better branching habit than the species.
Trade Name: ‘His Majesty™’ Cork Tree
Botanical Name: Phellodendron 'His Majesty'
Parentage: Introduced by Harold Pellett of the University of MN and the Landscape
Plant Development Center, hybrid of P. sachalinense and P. amurense
Family: Rutaceae
Height: 35’ – 40’
Spread: 30’ – 35’
Form: Broadly oval shape
Bloom Period: Late May to early June
Flower: Male only
Fruit: None, generally seedless
Summer Foliage: Medium green leaves
Autumn Foliage: Bright yellow in late fall
Winter Color: Bark provides winter interest
Bark: Light brown bark with darker twigs, ridged and furrowed like cork
Habitat: Species native to northern China, Manchuria and Japan
Culture: Transplants easily, tolerates a wide range of soil and urban conditions
Hardiness Zone: 3 – 9
Growth Rate: Rapid
Pest Resistance: Excellent
Storm Resistance: Fair to good
Salt Resistance: Fair
Planting: Transplants easily bare root because of fibrous roots, excellent choice
for a CU-Structural Soil project
Pruning: Best in late summer
Propagating: Budded onto P. amurense understock
Design Uses: Can be used in large areas, street tree use only when setback from curb
Companions: Looks good with most general landscape plants
Other Comments: Broadly oval shape
Available From: Most large nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Firebird Crabapple
Firebird Crabapple, a compact selection of M. sargentii features long lasting, high quality fruit. The annual fruit display is more persistent than any other natural dwarf crabapple.
Trade Name: ‘Firebird’ Crabapple
Botanical Name: Malus sargentii ‘Select A'
Plant Patent: # 12621
Parentage: Seedling from M. sargentii, introduced by University of Minnesota
Family: Rosaceae
Height: 8'
Spread: 10'
Form: Rounded, spreading with age
Flower: Red buds open to white flowers, 1-1/2" wide
Bloom Period: Mid spring
Fruit: 3/8" diameter, bright red, high quality, persistent
Summer Foliage: Dark green
Autumn Foliage: Dull yellow in autumn
Winter Color: Persistent fruit provides winter interest
Bark: Brown
Habitat: Species are scattered throughout temperate regions of North America
Culture: Moist well drained soil, sun
Hardiness Zone: 4 – 8
Growth Rate: Slow growth in New England, less than 8” per year, 12 years to mature size
Pest Resistance: Excellent resistance to scab, rust, mildew, and fireblight
Storm Resistance: Excellent
Salt Resistance: Excellent
Planting: Easily transplanted bare root, by containers, and B&B, excellent choice
for a CU-Structural Soil project
Pruning: Seldom needs pruning except to remove sucker growth in late summer
Propagating: Cuttings grafted onto Malus EMLA III understock
Design Uses: Excellent specimen for parks, lawns, and streets
Companions: Use with perennials
Other Comments: Long lasting fruit is more persistent than other crabs, fair appearance in
New England
Available from: Difficult to find in retail nurseries, look in the largest wholesale nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Firebird Crabapple, a compact selection of M. sargentii features long lasting, high quality fruit. The annual fruit display is more persistent than any other natural dwarf crabapple.
Trade Name: ‘Firebird’ Crabapple
Botanical Name: Malus sargentii ‘Select A'
Plant Patent: # 12621
Parentage: Seedling from M. sargentii, introduced by University of Minnesota
Family: Rosaceae
Height: 8'
Spread: 10'
Form: Rounded, spreading with age
Flower: Red buds open to white flowers, 1-1/2" wide
Bloom Period: Mid spring
Fruit: 3/8" diameter, bright red, high quality, persistent
Summer Foliage: Dark green
Autumn Foliage: Dull yellow in autumn
Winter Color: Persistent fruit provides winter interest
Bark: Brown
Habitat: Species are scattered throughout temperate regions of North America
Culture: Moist well drained soil, sun
Hardiness Zone: 4 – 8
Growth Rate: Slow growth in New England, less than 8” per year, 12 years to mature size
Pest Resistance: Excellent resistance to scab, rust, mildew, and fireblight
Storm Resistance: Excellent
Salt Resistance: Excellent
Planting: Easily transplanted bare root, by containers, and B&B, excellent choice
for a CU-Structural Soil project
Pruning: Seldom needs pruning except to remove sucker growth in late summer
Propagating: Cuttings grafted onto Malus EMLA III understock
Design Uses: Excellent specimen for parks, lawns, and streets
Companions: Use with perennials
Other Comments: Long lasting fruit is more persistent than other crabs, fair appearance in
New England
Available from: Difficult to find in retail nurseries, look in the largest wholesale nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Japanese Hornbeam
Japanese Hornbeam leaves are corrugated along the veins. These features, along with the distinctive fan like branch habit, contribute to the graceful shape of this unusual tree.
Common Name: Japanese Hornbeam
Botanical Name: Carpinus japonicus
Parentage: Introduced in 1879 from Japan
Family: Betulaceae
Height: 20' - 30'
Spread: 25’ - 35’
Form: Low branches are wide spreading, fan shape on older trees
Bloom Period: April
Flower: Attractive papery catkins on long stems
Fruit: Resembles hops, 2” – 2½” long
Summer Foliage: Finely serrated, corrugated along veins, narrow dark green leaves
Autumn Foliage: Sometimes turn yellow in autumn
Winter Color: Bark provides winter interest
Bark: Smooth, muscled gray bark
Habitat: Japan
Culture: Adapts to most soil, prefers well drained and full sun
Hardiness Zone: 4 – 9
Growth Rate: Moderate, less than 1’ per year
Pest Resistance: None serious except loved by beavers
Storm Resistance: Excellent because of extremely hard wood, heavy and tough
Salt Resistance: Fair
Planting: B&B in spring, excellent choice for a CU-Structural Soil project
Pruning: Seldom required, but will tolerate heavy pruning for hedge use
Propagating: Cuttings made in July or grafted to C. betulus seedlings
Design Uses: Handsome foliage makes tree worth planting in parks, cemeteries, & golf
courses, has fine texture
Companions: Will tolerate shade from larger companions, excellent understory tree
Other Comments: Spring planting only, fair appearance in New England
Available From: Most large nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Japanese Hornbeam leaves are corrugated along the veins. These features, along with the distinctive fan like branch habit, contribute to the graceful shape of this unusual tree.
Common Name: Japanese Hornbeam
Botanical Name: Carpinus japonicus
Parentage: Introduced in 1879 from Japan
Family: Betulaceae
Height: 20' - 30'
Spread: 25’ - 35’
Form: Low branches are wide spreading, fan shape on older trees
Bloom Period: April
Flower: Attractive papery catkins on long stems
Fruit: Resembles hops, 2” – 2½” long
Summer Foliage: Finely serrated, corrugated along veins, narrow dark green leaves
Autumn Foliage: Sometimes turn yellow in autumn
Winter Color: Bark provides winter interest
Bark: Smooth, muscled gray bark
Habitat: Japan
Culture: Adapts to most soil, prefers well drained and full sun
Hardiness Zone: 4 – 9
Growth Rate: Moderate, less than 1’ per year
Pest Resistance: None serious except loved by beavers
Storm Resistance: Excellent because of extremely hard wood, heavy and tough
Salt Resistance: Fair
Planting: B&B in spring, excellent choice for a CU-Structural Soil project
Pruning: Seldom required, but will tolerate heavy pruning for hedge use
Propagating: Cuttings made in July or grafted to C. betulus seedlings
Design Uses: Handsome foliage makes tree worth planting in parks, cemeteries, & golf
courses, has fine texture
Companions: Will tolerate shade from larger companions, excellent understory tree
Other Comments: Spring planting only, fair appearance in New England
Available From: Most large nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Boulevard American Linden
Tall and narrow, Boulevard American Linden is a selection of the native American Basswood. This tree is very hardy and well suited to street plantings.
Trade Name: ‘Boulevard’ American Linden
Botanical Name: Tilia americana 'Boulevard'
Parentage: Selection made at Bailey Nurseries
Family: Tiliaceae
Height: 50'- 60'
Spread: 25'- 30'
Form: Narrow pyramid shape
Bloom Period: Late June to early July
Flower: Fragrant and yellow
Fruit: 1/3" nutlet
Summer Foliage: Medium green in summer
Autumn Foliage: Dull yellow if any color in the fall
Winter Color: Bark provides winter interest
Bark: Gray
Habitat: Canada to Virginia, North Dakota to Texas
Culture: Likes well drained soil, any pH, full sun to partial shade, tolerates heat,
drought, and air pollution Hardiness Zone: 3 – 8
Growth Rate: Moderate, less than 1‘ per year
Pest Resistance: Leaf spot is bad
Storm Resistance: Excellent
Salt Resistance: Fair
Planting: Transplants easily bare root, quick recovery, excellent choice for a CU-
Structural Soil project
Pruning: Prune at planting and 3 years later to mature form, withstands severe
pruning, may only require pruning of basal sprouts and removal of some
potential crotch problems
Propagating: Budded onto T. cordata understock
Design Uses: Well suited for street tree planting
Companions: Use with ground covers such as Vinca and Pachysandra
Other Comments: Good appearance in New England and along the East Coast
Available From: Most large nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Tall and narrow, Boulevard American Linden is a selection of the native American Basswood. This tree is very hardy and well suited to street plantings.
Trade Name: ‘Boulevard’ American Linden
Botanical Name: Tilia americana 'Boulevard'
Parentage: Selection made at Bailey Nurseries
Family: Tiliaceae
Height: 50'- 60'
Spread: 25'- 30'
Form: Narrow pyramid shape
Bloom Period: Late June to early July
Flower: Fragrant and yellow
Fruit: 1/3" nutlet
Summer Foliage: Medium green in summer
Autumn Foliage: Dull yellow if any color in the fall
Winter Color: Bark provides winter interest
Bark: Gray
Habitat: Canada to Virginia, North Dakota to Texas
Culture: Likes well drained soil, any pH, full sun to partial shade, tolerates heat,
drought, and air pollution Hardiness Zone: 3 – 8
Growth Rate: Moderate, less than 1‘ per year
Pest Resistance: Leaf spot is bad
Storm Resistance: Excellent
Salt Resistance: Fair
Planting: Transplants easily bare root, quick recovery, excellent choice for a CU-
Structural Soil project
Pruning: Prune at planting and 3 years later to mature form, withstands severe
pruning, may only require pruning of basal sprouts and removal of some
potential crotch problems
Propagating: Budded onto T. cordata understock
Design Uses: Well suited for street tree planting
Companions: Use with ground covers such as Vinca and Pachysandra
Other Comments: Good appearance in New England and along the East Coast
Available From: Most large nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
China Snow Lilac
China Snow Pekin Tree Lilac has large sprays of cream-white flowers are borne in June. This small ornamental tree has amber to orange-brown exfoliating bark that extends seasonal interest through the winter months.
Trade Name: ‘China Snow’ Pekin Tree Lilac
Botanical Name: Syringa pekinensis ‘Morton'
Parentage: Seedling discovered at Morton Arboretum
Family: Oleaceae
Height: 12' - 20'
Spread: 8' - 20'
Form: Columnar, upright oval
Bloom Period: Late May
Flower: Creamy white, 3" - 6" long panicles
Fruit: Dry, tan capsule
Summer Foliage: Dark green above, gray green beneath, small
Autumn Foliage: Yellow in the fall
Winter Color: Bark provides winter interest
Bark: Handsome, cherry-like, reddish brown, rich brown flakes exfoliate
Habitat: Native of China
Culture: Full sun is best, flower quantity is greatly diminished in partial shade, pH
6.5 – 8, well-drained soil, prefers cool summers
Hardiness Zone: 3 – 7
Growth Rate: Medium
Pest Resistance: Some maintenance is required
Storm Resistance: Good
Salt Resistance: Excellent
Planting: Easily transplanted from B&B, bare root, and container, excellent choice for a CU-Structural Soil project
Pruning: Prune at planting and 3 years later to mature form, prune just after
flowering
Propagating: Grown from cuttings on own root, also grown by tissue culture
Design Uses: Good street tree for under wires, excellent specimen for residential landscapes as a single tree or in groups
Companions: Use with Phlox subulata ground cover
Other Comments: Loose, arching, fine texture, performs better in the Midwest than in New England
Available from: Difficult to find in retail nurseries, look in the largest wholesale nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
China Snow Pekin Tree Lilac has large sprays of cream-white flowers are borne in June. This small ornamental tree has amber to orange-brown exfoliating bark that extends seasonal interest through the winter months.
Trade Name: ‘China Snow’ Pekin Tree Lilac
Botanical Name: Syringa pekinensis ‘Morton'
Parentage: Seedling discovered at Morton Arboretum
Family: Oleaceae
Height: 12' - 20'
Spread: 8' - 20'
Form: Columnar, upright oval
Bloom Period: Late May
Flower: Creamy white, 3" - 6" long panicles
Fruit: Dry, tan capsule
Summer Foliage: Dark green above, gray green beneath, small
Autumn Foliage: Yellow in the fall
Winter Color: Bark provides winter interest
Bark: Handsome, cherry-like, reddish brown, rich brown flakes exfoliate
Habitat: Native of China
Culture: Full sun is best, flower quantity is greatly diminished in partial shade, pH
6.5 – 8, well-drained soil, prefers cool summers
Hardiness Zone: 3 – 7
Growth Rate: Medium
Pest Resistance: Some maintenance is required
Storm Resistance: Good
Salt Resistance: Excellent
Planting: Easily transplanted from B&B, bare root, and container, excellent choice for a CU-Structural Soil project
Pruning: Prune at planting and 3 years later to mature form, prune just after
flowering
Propagating: Grown from cuttings on own root, also grown by tissue culture
Design Uses: Good street tree for under wires, excellent specimen for residential landscapes as a single tree or in groups
Companions: Use with Phlox subulata ground cover
Other Comments: Loose, arching, fine texture, performs better in the Midwest than in New England
Available from: Difficult to find in retail nurseries, look in the largest wholesale nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
American Chestnut
Trade Name: American Chestnut
Botanical Name: Castanea dentata
Parentage: Native to eastern US
Family: Fagaceae
Height: 80’ – 100’
Spread: 60’ – 80’
Form: Broad rounded crown
Bloom Period: Late May
Flower: Creamy white catkins
Fruit: Sweet tasting nut within a prickly soft shell
Summer Foliage: Dark green, long point on 5” to 11” long leaves
Autumn Foliage: Yellow and bronze in the fall
Winter Color: Bark provides winter interest
Bark: Brown
Habitat: Native of US
Culture: Full sun is best, well-drained soil, prefers cool summers
Hardiness Zone: 4 – 8
Growth Rate: Slow to medium Pest Resistance: All trees susceptible to chestnut blight, genetic engineering is adding a protective gene as a possible cure. Researchers are also growing clones of blight resistant trees growing in the wild. American Chestnut Foundation is cross breeding with Chinese chestnut to breed in resistance. Currently at 99% C. dentate, 1% C. mollissima
Storm Resistance: Good
Salt Resistance: Good
Planting: Easily transplanted from B&B, bare root, and container
Pruning: Prune at planting and 3 years later to mature form, prune just after
flowering
Propagating: Grown from seed
Design Uses: Once cured of blight this will make a good street tree and excellent
specimen for residential landscapes as a single tree
Companions: Use with Phlox subulata ground cover
Other Comments: Most available trees are 99% cured of blight
Available from: Difficult to find in retail nurseries, look in the specialty nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Trade Name: American Chestnut
Botanical Name: Castanea dentata
Parentage: Native to eastern US
Family: Fagaceae
Height: 80’ – 100’
Spread: 60’ – 80’
Form: Broad rounded crown
Bloom Period: Late May
Flower: Creamy white catkins
Fruit: Sweet tasting nut within a prickly soft shell
Summer Foliage: Dark green, long point on 5” to 11” long leaves
Autumn Foliage: Yellow and bronze in the fall
Winter Color: Bark provides winter interest
Bark: Brown
Habitat: Native of US
Culture: Full sun is best, well-drained soil, prefers cool summers
Hardiness Zone: 4 – 8
Growth Rate: Slow to medium Pest Resistance: All trees susceptible to chestnut blight, genetic engineering is adding a protective gene as a possible cure. Researchers are also growing clones of blight resistant trees growing in the wild. American Chestnut Foundation is cross breeding with Chinese chestnut to breed in resistance. Currently at 99% C. dentate, 1% C. mollissima
Storm Resistance: Good
Salt Resistance: Good
Planting: Easily transplanted from B&B, bare root, and container
Pruning: Prune at planting and 3 years later to mature form, prune just after
flowering
Propagating: Grown from seed
Design Uses: Once cured of blight this will make a good street tree and excellent
specimen for residential landscapes as a single tree
Companions: Use with Phlox subulata ground cover
Other Comments: Most available trees are 99% cured of blight
Available from: Difficult to find in retail nurseries, look in the specialty nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Sun Valley Red Maple
Sun Valley Red Maple is a U. S. National Arboretum introduction that glows in the fall with reliable bright red color. It is seedless and features a very uniform, dense oval head.
Trade Name: ‘Sun Valley’ Red Maple
Botanical Name: Acer rubrum ‘Sun Valley'
Parentage: A. ‘Red Sunset’ x A. ‘Autumn Flame’, Selection by US National Arboretum
Family: Aceraceae
Height: 35' – 40'
Spread: 35'
Form: Very symmetrical oval form Bloom Period: Very early spring
Flower: Red, profuse
Fruit: Seedless
Summer Foliage: Dark green and glossy in summer
Autumn Foliage: Reliably red in fall, color ranges from bright orange to red to purple
Winter Color: Bark provides winter interest
Bark: Silvery color for winter interest, thin bark easily damaged
Habitat: Native from the East Coast to Minnesota and Texas, cultivars are
variable and regional
Culture: Moist conditions, tolerates most soils, urban pollution, and partial shade,
requires slightly acid soil
Hardiness Zone: 4 – 8
Growth Rate: Medium, 25' – 30' in 30 years, average 1’ per year
Pest Resistance: Some leaf scab problems
Storm Resistance: Excellent, good strong wood, good crotch strength
Salt Resistance: Fair
Planting: Transplants easily bare root, avoid fall planting in northern climates
Pruning: Should not be done in early spring
Propagating: Best done as softwood cuttings, grown on own roots
Design Uses: Excellent for streets, lawns, and parks, medium texture
Companions: Excellent with an evergreen background
Comments: Spectacular in autumn – especially in New England and the East Coast,
one of the best red maples, dense branches, excellent in summer
Available From: Most large nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Sun Valley Red Maple is a U. S. National Arboretum introduction that glows in the fall with reliable bright red color. It is seedless and features a very uniform, dense oval head.
Trade Name: ‘Sun Valley’ Red Maple
Botanical Name: Acer rubrum ‘Sun Valley'
Parentage: A. ‘Red Sunset’ x A. ‘Autumn Flame’, Selection by US National Arboretum
Family: Aceraceae
Height: 35' – 40'
Spread: 35'
Form: Very symmetrical oval form Bloom Period: Very early spring
Flower: Red, profuse
Fruit: Seedless
Summer Foliage: Dark green and glossy in summer
Autumn Foliage: Reliably red in fall, color ranges from bright orange to red to purple
Winter Color: Bark provides winter interest
Bark: Silvery color for winter interest, thin bark easily damaged
Habitat: Native from the East Coast to Minnesota and Texas, cultivars are
variable and regional
Culture: Moist conditions, tolerates most soils, urban pollution, and partial shade,
requires slightly acid soil
Hardiness Zone: 4 – 8
Growth Rate: Medium, 25' – 30' in 30 years, average 1’ per year
Pest Resistance: Some leaf scab problems
Storm Resistance: Excellent, good strong wood, good crotch strength
Salt Resistance: Fair
Planting: Transplants easily bare root, avoid fall planting in northern climates
Pruning: Should not be done in early spring
Propagating: Best done as softwood cuttings, grown on own roots
Design Uses: Excellent for streets, lawns, and parks, medium texture
Companions: Excellent with an evergreen background
Comments: Spectacular in autumn – especially in New England and the East Coast,
one of the best red maples, dense branches, excellent in summer
Available From: Most large nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Snowcloud Serviceberry
Snowcloud Serviceberry was selected for its upright, tree form growth. This strong growing serviceberry makes a good small street tree.
Trade Name: ‘Snowcloud’ Serviceberry or Shadblow
Botanical Name: Amelanchier laevis ‘Snowcloud'
Plant Patent: #7203
Parentage: Selection of A. laevis
Family: Rosaceae
Height: 25' - 30' Spread: 15' - 18'
Form: Upright tree form
Bloom Period: Early spring
Flower: White clusters, 1" wide
Fruit: Edible, 3/8", purplish blue, usually consumed by birds
Spring Color: Red tint
Summer Foliage: Dark green in summer
Autumn Foliage: Orange to scarlet red in autumn
Winter Color: Bark provides winter interest
Bark: Light gray
Habitat: Species native to eastern half of North America
Culture: Somewhat sensitive to drought, soil compaction and air pollution, likes
well drained moist sites, acid soil is best, tolerates full sun or partial
shade
Hardiness Zone: 4 – 9
Growth Rate: Vigorous, full size in less than 30 years
Pest Resistance: Some but none serious
Storm Resistance: Good
Salt Resistance: Fair
Planting: Transplant bare root, container, and B&B into moist soil, tolerates full sun
and partial shade
Pruning: Generally not needed
Propagating: Generally by tissue culture
Design Uses: Excellent for naturalizing
Companions: Blueberries and low broadleaf shrubs and perennials
Other Comments: Selected for upright, tree form growth, suitable for most sites, excellent
as a small street tree, rarely needs fertilizer or pruning, upright oval form
Available From: Difficult to find in retail nurseries, look in the largest wholesale nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Snowcloud Serviceberry was selected for its upright, tree form growth. This strong growing serviceberry makes a good small street tree.
Trade Name: ‘Snowcloud’ Serviceberry or Shadblow
Botanical Name: Amelanchier laevis ‘Snowcloud'
Plant Patent: #7203
Parentage: Selection of A. laevis
Family: Rosaceae
Height: 25' - 30' Spread: 15' - 18'
Form: Upright tree form
Bloom Period: Early spring
Flower: White clusters, 1" wide
Fruit: Edible, 3/8", purplish blue, usually consumed by birds
Spring Color: Red tint
Summer Foliage: Dark green in summer
Autumn Foliage: Orange to scarlet red in autumn
Winter Color: Bark provides winter interest
Bark: Light gray
Habitat: Species native to eastern half of North America
Culture: Somewhat sensitive to drought, soil compaction and air pollution, likes
well drained moist sites, acid soil is best, tolerates full sun or partial
shade
Hardiness Zone: 4 – 9
Growth Rate: Vigorous, full size in less than 30 years
Pest Resistance: Some but none serious
Storm Resistance: Good
Salt Resistance: Fair
Planting: Transplant bare root, container, and B&B into moist soil, tolerates full sun
and partial shade
Pruning: Generally not needed
Propagating: Generally by tissue culture
Design Uses: Excellent for naturalizing
Companions: Blueberries and low broadleaf shrubs and perennials
Other Comments: Selected for upright, tree form growth, suitable for most sites, excellent
as a small street tree, rarely needs fertilizer or pruning, upright oval form
Available From: Difficult to find in retail nurseries, look in the largest wholesale nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Commendation Hybrid Elm
Commendation Elm has an oval canopy with good foliage quality. Its branches are upright spreading and symmetrical. It is also fast growing but not wild and easier to maintain good form than is the case with most elm cultivars.
Trade Name: 'Commendation’ Hybrid Elm
Botanical Name: Ulmus ‘Morton Stalwart'
Parentage: U. pumila x U. wilsoniana x U. carpinifolia
Family: Ulmaceae
Height: 60'
Spread: 50'
Form: Upright oval shape
Bloom Period: August & September
Flower: Inconspicuous
Fruit: Round samara
Summer Foliage: Dark green in summer
Autumn Foliage: Bright yellow in autumn
Winter Color: Bark provides winter interest
Bark: Grayish brown
Habitat: Asian origin
Culture: Tolerates most soils and urban conditions, prefers rich, moist soil
Hardiness Zone: 5 – 9
Growth Rate: Moderate, full size in 40 years, averaging 6” – 12” per year
Pest Resistance: Resistant to Dutch Elm Disease and phloem necrosis
Storm Resistance: Poor due to brittle wood
Salt Resistance: Excellent
Planting: Transplants easily BR, container, or B&B, excellent choice for a CU-Structural Soil project
Pruning: Prune in fall
Propagating: Budded onto U. pumila understock
Design Uses: Medium texture, good for homes, streets, parks, and commercial
landscapes
Companions: Looks good with most general landscape plants
Other Comments: Symmetrical branches, excellent in New England
Available from: Difficult to find in retail nurseries, look in the largest wholesale nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.
Commendation Elm has an oval canopy with good foliage quality. Its branches are upright spreading and symmetrical. It is also fast growing but not wild and easier to maintain good form than is the case with most elm cultivars.
Trade Name: 'Commendation’ Hybrid Elm
Botanical Name: Ulmus ‘Morton Stalwart'
Parentage: U. pumila x U. wilsoniana x U. carpinifolia
Family: Ulmaceae
Height: 60'
Spread: 50'
Form: Upright oval shape
Bloom Period: August & September
Flower: Inconspicuous
Fruit: Round samara
Summer Foliage: Dark green in summer
Autumn Foliage: Bright yellow in autumn
Winter Color: Bark provides winter interest
Bark: Grayish brown
Habitat: Asian origin
Culture: Tolerates most soils and urban conditions, prefers rich, moist soil
Hardiness Zone: 5 – 9
Growth Rate: Moderate, full size in 40 years, averaging 6” – 12” per year
Pest Resistance: Resistant to Dutch Elm Disease and phloem necrosis
Storm Resistance: Poor due to brittle wood
Salt Resistance: Excellent
Planting: Transplants easily BR, container, or B&B, excellent choice for a CU-Structural Soil project
Pruning: Prune in fall
Propagating: Budded onto U. pumila understock
Design Uses: Medium texture, good for homes, streets, parks, and commercial
landscapes
Companions: Looks good with most general landscape plants
Other Comments: Symmetrical branches, excellent in New England
Available from: Difficult to find in retail nurseries, look in the largest wholesale nurseries
Photo
The test that follows contains 10 questions. Before taking the test be sure you have read the article carefully. The passing grade is 80% on the entire test.
ISA will award .5 CEUs* for a passing grade. SAF members will earn 0.5 Cat. 1-CF for every five passing test scores. The cost for taking this test is $10. If you purchase an annual subscription for 15 credits, the cost per credit is reduced by 50% (see Annual Subscription link below). We will report all passing test scores to ISA and/or SAF. If you are a member of ISA and SAF we will report your passing test scores to both for no additional cost. Please be sure to add both of your certification numbers when you sign in. Tests with passing scores may be submitted only once to each organization.
*Members of ISA may apply the .5 CEUs toward Certified Arborist, Utility Specialist, Municipal Specialist, Tree Worker Specialist, Aerial Lift Specialist, or BCMA science credits.
California UFC members will receive credit for passing the test. Please add your CaUFC number after your ISA and/or SAF certification number.
ASCA members may submit your ISA certification record to the ASCA and receive credits one for one.
MTOA members must follow the ISA instructions indicated above.
To take the test by the pay per test option, click on the 'Pay Now' button below where you can send payment online securely with your credit card or Pay Pal account. After your payment is submitted, click on ‘Return to gibneyCE.com’. That will take you to the test sign in page followed by the test. Members with certifications from both ISA and SAF, please be sure to add both of your certification numbers. These numbers are important for reporting purposes.
To take the test as an annual subscriber with reduced rates, click on Password and enter your test password which will take you to the test sign in page. If you would like to become a subscriber see our Annual Subscription page for details.
When you have finished answering all questions you will be prompted to click ‘next’ to send your answers to gibneyCE.com. You can then click ‘next’ to view your test summary. A test review of your answers is available upon request.
All passing test scores are sent from gibneyCE.com to your organization(s) at the end of every month and they will appear on your certification record 4 to 6 weeks* after that. ISA maintains a record of CEU credits on their website *SAF requires 5 passing test scores before reporting.
Test re-takes are allowed, however you will have to pay for the retake if you are using the pay per test option. You can spend as much time as you would like to take the test but it is important not to leave the test site until you have answered all the questions and see the 'sending your answers' response.