Trees in the Arboretum

Alaska Cedar

Chamaecyparis nootkatensis

Native to coastal regions of North America from Alaska south to Oregon. Medium growth rate to 30' to 45' tall. An evergreen tree that prefers deep, moist, well drained soil in full sun.

American Linden

Tilia americana

Native to eastern North America. Large deciduous tree grows to 70'. Leaves are heart shaped, dark green above and silvery underneath. Has poor autumn color. Small creamy white flowers in June are very fragrant. Prefers deep, moist fertile soils and full sun.

Aristocrat Flowering Pear

Pyrus calleryana 'Aristocrat'

Native to Japan and Korea. Medium sized tree grows to 35'. Leaves are a glossy dark green that change to red, purple and orange for autumn. Fast growth rate. Very showy small white flowers in April, mildly malodorous. Very tolerant and adaptable of hot dry conditions. Excellent street tree. "Aristocrat" is a cultivar more preferable to "Bradford" as it is less likely to split under snow load.

Austrian Pine

Pinus nigra

Native to Europe. Large evergreen grows to 60'. Dark green needles in bundles of 2, 6" long. Somewhat tolerant of heat, pollution, urban conditions and salt. Prefers full sun. Adaptable to most soils.

Autumn Brilliance Apple Serviceberry

Amelanchier x grandiflora 'Autumn Brilliance'

A hybrid cross between native serviceberries. Small deciduous tree grows to 20'. Very adaptable to soil types and fairly drought tolerant. Prefers full sun. Very showy white flowers in late April. Good autumn color of red, orange and yellow.

Bigtooth Aspen

Populus grandidentata

Native to eastern North America. Medium sized deciduous tree grows to 50' tall and 40' wide. Fast growth rate and tends to be short lived. Yellow autumn color. Prefers wet soils in full sun.

Black/Sweet Birch

Betula lenta

Native to eastern North America. Medium sized tree, grows to 60'. Autumn color is a golden yellow. Prefers deep, rich, moist acidic soil in full sun. Bruised twigs have a wintergreen odor.

Bloodgood Japanese Maple

Acer palmatum 'Bloodgood'

Native to Japan, China, and Korea. Small deciduous tree, grows 25' with a slow growth rate. Prefers moist, well-drained lightly acidic soil in full sun to partial shade. Avoid windy locations. "Bloodgood" is a very common form with excellent burgundy colored foliage.

Brandywine Flowering Crabapple

Malus 'Brandywine'

A hybrid crabapple. Deciduous tree grows to 20' x 20'. Blooms in May. Flowers are a double pink and fragrant. Shows good disease resistance.

Colorado Blue Spruce

Picea pungens 'Glauca'

Native to southwestern United States. Evergreen tree with horizontal, stiff branches, overall conical shape. Slow growth rate to 30' to 60' tall. Very adaptable to soil types and somewhat drought tolerant. "Glauca" is the blue variety of Colorado Spruce.

Colorado Spruce

Picea pungens

Native to southwestern United States. Evergreen tree with horizontal, stiff branches, overall conical shape. Slow growth rate to 30' to 60' tall. Very adaptable to soil types and somewhat drought tolerant.

Columnar English Oak

Quercus rubar 'Fastigiata'

"Columnar" English Oak is more common than the English Oak in the United States. It grows narrow and upright and is slow growing. It may reach upwards of 50' tall with a spread of only 10' to 15'. Prefers full sun and a fertile, moist, well-drained soil. Poor autumn color with leaves persisting well into winter.

Columnar White Pine

Pinus strobus 'Fastigiata'

White Pines are native from New England to Georgia and west to the mid-west. An evergreen with 4" long 5 bundled needles that are soft with a bluish cast.  "Fastigiata" is a narrow columnar form growing to 70' with a much narrower spread.

Common Horse Chestnut

Aesculus hippocastanum

Native to Greece and Albania. Large deciduous tree, grows to 50' to 70' tall. Dark green summer leaves show poor yellow autumn color, if at all. Very showy, white, upright, panicle flowers in May. The brown nuts are encased in spiny hulls. Prefers full sun in moist, well-drained soils. Leaf scorch is a problem in hot, dry locations.

Crimson King Norway Maple

Acer plantanoides 'Crimson King'

Crimson King

Native to Europe. A popular cultivar of Norway Maple. Leaves emerge crimson and change to a deep maroon color. Medium to large deciduous shade tree, grows to 60' tall. Very adaptable and tolerant.

Crimson Queen Japanese Maple

Acer palmatum 'Crimson Queen'

Native to Japan, China and Korea. Small deciduous tree grows, 10' tall and 12' wide. Growth rate is slow. Prefers full sun to partial shade; moist, acidic well-drained soil. Avoid windy sites. "Crimson Queen" is a red leaved form with finely-cut dissected leaves. It has a weeping arched form.

Dawn Redwood

Metasequoia glyptostroboides

Native to China. Thought to be extinct but rediscovered in 1941. A large deciduous coniferous tree grows to 75'. Fast growth rate. Prefers well-drained soil in full sun. Needs room to develop.

Douglas Fir

Pseudotsuga menziesii

Native to western North America. Large evergreen grows to 80'. Needle color varies from blue-green to bright green. Prefers well-drained, slightly acidic soil in full sun. A common tree in the Christmas tree market.

Eastern Hemlock

Tsuga canadensis

Native to eastern North America. Large evergreen tree grows to 70'. Prefers full sun to partial shade in cool moist, well-drained soils. Can be sheared for hedging. Not tolerant of pollution, salt, heat or drought. State tree of Pennsylvania. 

Eastern Redbud/Judas Tree

Cercis canadensis

Native to southeastern United States. Hardy to zone 5 if protected. Small deciduous tree grows to 35' tall and wide. Small pink pea-like flowers in early May are very showy. Leaves are heart shaped. Prefers full sun to part shade. Tends to be short lived.

Emerald Green Arbovitae

Thuja occidentalis 'Emerald Green'

Native to northeastern North America. Conical shaped evergreen. Very tolerant and adaptable. Prefers full sun in moist soil. "Emerald Green" is the most popular cultivar. The bright green colored foliage holds well through winter. Grows to 15' tall and 5' feet wide. Excellent cold and heat tolerance.

European Beech

Fagus sylvatica

European beech can grow up 160' tall with a typical lifespan of 150-200 years. Prefers average well-drained soil in full sun. Excellent tree for parks, campuses and large open grounds, but grows too large for the home landscape.

Garnet Japanese Maple

Acer palmatum 'Garnet'

Garnet

'Garnet' has deeply dissected vibrant red leaves. A slow grower that grows wider than it does tall. It prefers acidic, well-drained, moist soil in full sun for best color. Keep root zone well mulched for best results. Also provides great winter interest in the landscape.

Green Mountain Sugar Maple

Acer saccharum 'Green Mountain'

Native to northeastern and northcentral United States and Canada. Large deciduous tree, grows to 75' or more. Best known for its autumn foliage of yellow, orange or red. Prefers well-drained, moist, fertile soils. Not tolerant of high heat, pollution or road salt. One of the best large shade trees if its growing conditions are met. "Green Mountain" is a popular form with dark green summer foliage.

Greenspire Littleleaf Linden

Tilia cordata “Greenspire”

A deciduous medium to large tree that grows 50 to 60 ft. Pyramidal shape in youth, easily transplants, and prefers moist, deep, fertile, well-drained soils, but is adaptable to a difficult site. It shows tolerance to pollution and urban sites. Leaves are dark green in summer and a non-showy yellow in the autumn. Clusters of small yellow flowers in late June are quite fragrant and highly attractive to bees.

Heritage River Birch

Betula nigra 'Heritage'

Native to eastern United States. In the wild found along streams, rivers and floodplains. Adaptable to drier sites. Prefers full sun. Often multistemmed, deciduous tree grows to 50'. Fast growth rate. Medium green leaves turn yellow in autumn and drop quickly. Best known for its exfoliating bark of brown, tan and white. "Heritage" has excellent disease resistance.

Japanese Stewartia

Stewartia pseudocamellia

Native to Japan. Small to medium deciduous tree. Has good autumn colors of yellow, red and purple. Has single white Camilla-like flowers from June to August. Older bark exfoliates to reveal a camouflage-type pattern. Prefers rich organic soil with shelter from afternoon sun. Difficult to establish. Dislikes heat and drought.

Kousa Dogwood

Cornus kousa

Kousa dogwoods are native to Japan, Korea and China. Small deciduous tree grows to 30' tall and wider than 30'. Autumn leaves turn a reddish purple. The fruit look like large raspberries. The flowers are small greenish yellow surrounded by four large pointed creamy white bracts. Bark on older trees develops a camouflage like appearance. Prefers moist, fertile, acidic well drained soil in full sun. A very useful four season tree.

Legacy Sugar Maple

Acer saccharum 'Legacy'

Native to northeastern and north central United States and Canada. Large deciduous tree, grows to 75' or more. Best known for its autumn foliage of yellow, orange or red. Prefers well-drained, moist, fertile soils. Not tolerant of high heat, pollution or road salt. One of the best large shade trees if its growing conditions are met. 'Legacy' displays good drought tolerance.

Norway Maple

Acer plantanoides

Native to Europe. Large deciduous tree, grows to 60'. Rapid growth rate. Prolific self seeder can be invasive. Autumn color is yellow. Very adaptable and tolerant of urban conditions. Root system can kill turf and damage sidewalks.

Norway Spruce

Picea abies

Native to Europe. Conical evergreen with horizontal branches. Fast growth rate to 60'. Prefers well-drained, sandy, acidic soil in full sun. Needs room to develop.

Okame Flowering Cherry

Prunus x incam 'Okame'

'Okame' is a hybrid between P. incisa and P. campanulata. A small tree growing 15' to 25' and up to 20' wide. Prefers full sun and is tolerant of soil types. Very showy dark pink flowers in early April.

Patmore Green Ash

Fraxinus pennsylvanica 'Patmore'

Native to eastern United States. Large deciduous tree, grows to 70'. Fast growth rate. Showy yellow autumn foliage. Prefers deep, moist soil in full sun but is quite adaptable. "Patmore" is a seedless cultivar with good disease and insect resistance.

Pin Oak

Quercus palustris

A large, deciduous tree grows to 75' tall, pyramidal shape when young and excellent red or bronze autumn color. A fast growing, easily transplanted tree that prefers moist, fertile and well-drained, acidic soil. Needs ample room to develop; a good shade, lawn tree for campuses and larger sites but too large for home landscapes.

Ponderosa Pine

Pinus ponderosa

Native to western North America. Fast growth rate to 50-80', prefers full sun and is salt and drought tolerant. Needles in 3's are 8-10" long. 4" long reddish brown cones are usually in pairs.

Red Maple

Acer rubrum

Native to eastern United States and Canada. Deciduous medium to large tree, grows to 70' tall. Relatively fast growing. Autumn color can vary from bright yellow to vibrant scarlet to burgundy. Tolerant of many conditions and adaptable. Prefers moist, acidic soils in full sun. An excellent tree for fall color.

Red Oak

Quercus rubra

Native to northeastern United States. A large, long-lived tree grows to 75'. Rapid growth, full sun, easily transplanted which withstands urban conditions well. Needs ample room to develop. Large acorns to 1" take two years to mature, can be numerous, creating a litter problem on lawns and sidewalks.

River Birch

Betula nigra

Native to eastern United States. In the wild found along streams, rivers and floodplains. Adaptable to drier sites. Prefers full sun. Often multistemmed, deciduous tree, grows to 50'. Fast growth rate. Medium green leaves turn yellow in autumn and drop quickly. Best known for its exfoliating bark of brown, tan and white.

River's Purple Beech

Fagus sylvatica 'Riversii'

Native to Europe. Deciduous tree to 60' tall and 50' wide, slow growth rate. Does best in full sun, moist, well-drained, acidic soil. Bark is light grey and smooth. Good tree for large, open areas. Leaves are a deep purple in color which tend to fade as the season progresses.

Royal Star Magnolia

Magnolia stellata 'Royal Star'

Native to Japan. Deciduous small tree grows to 20'. Showy, fragrant, white flowers have up to 18 petals per flower and are narrow and strap-like. Prefers full sun in moist fertile soil. Relatively adaptable. "Royal Star" is the most common variety.

Sargents Flowering Crabapple

Malus sargentii

Native to Japan. Small deciduous tree to 8' and twice as wide. Fragrant white flowers in May are very showy. Blooms heavily every other year. Small red fruit attracts birds. Prefers full sun and is quite tolerant to soil types.

Sargents Weeping Canadian Hemlock

Tsuga canadensis 'Pendula'

Native to eastern North America. An evergreen tree that prefers cool, moist, well-drained soils. Full sun to partial shade is best, tolerant of heavy shade. Not tolerant of pollution, salt, heat or drought. Weeping Hemlocks may reach 15' tall and twice as wide.

Satomi Kousa Dogwood

Cornus kousa 'Satomi'

Satomi

Kousa dogwoods are native to Japan, Korea and China. Small deciduous tree grows to 30' tall and wider than 30'. Autumn leaves turn a reddish purple. The fruit looks like large raspberries. The flowers are small, greenish yellow, and are surrounded by four large, pointed bracts. "Satomi" has bright pink bracts. Bark on older trees develops a camouflage-like appearance. Prefers moist, fertile, acidic, well-drained soil in full sun. A very useful four season tree.

Shadblow Tree

Amelanchier canadensis

Native from Maine down through the Carolinas. Naturally occurs in wet sites and swamps. Deciduous small tree or large shrub. Often multi-stemmed growing to 20' tall. Good fall color. Numerous small white flowers in early April. Prefers wet sites in full sun. Transplants easily.

Shademaster Honeylocust

Gleditsia triacanthos inermis 'Shademaster'

Native to the central United States. A medium to large tree grows to 40' tall with an equal spread. Full sun, very adaptable and tolerant of pollution and salt. Useful for the light shade it casts. 'Shademaster' is a seedless, thornless variety.

Shagbark Hickory

Carya ovata

Native to eastern North America. Large deciduous tree grows to 80'. Typically has a very straight central leader. Autumn color is a very showy golden yellow. Produces 1" to 1.5" rounded edible nuts with a sweet taste. Old bark shags into long plates. Prefers deep, well-drained soil in full sun to partial shade. Difficult to transplant.

Silver Maple

Acer saccharinum

Native to eastern United States and Canada. Large deciduous tree, grows to 70' tall or more. Very fast growing tree which causes wood to be weak and break easily during storms or heavy snow load. Leaves are bright green above and silvery below. Very tolerant of urban conditions causing it to be overused as a street tree.

Skyrocket Juniper

Juniperus scopulorum 'Skyrocket'

Native to the Rocky Mountains of North America. A narrow conical evergreen that is silvery blue in color. Tolerant of most soils except wet soils. Prefers full sun. Does not like high humidity.

Snowgoose Cherry

Prunus serrulata 'Snowgoose'

Native to Japan, China and Korea. Deciduous tree, grows to 20'. Prefers well-drained soil in full sun. "Snowgoose" has abundant white flowers in April. Tends to be short lived.

Summit Green Ash

Fraxinus pennsylvanica 'Summit'

Native to eastern United States. Large deciduous tree, grows to 70'. Fast growth rate. Showy yellow autumn foliage. Prefers deep, moist soil in full sun but is quite adaptable. "Summit" only grows to 50'.

Sunburst Honeylocust

Gleditsia triacanthos inermis 'Sunburst'

Native to cental United States. Medium deciduous tree grows to 35'. Prefers full sun and is very adaptable. Tolerant of pollution and salt. "Sunburst" is a very popular form with bright gold spring foliage that fades to green.

Tanyosho Japanese Red Pine

Pinus densiflora 'Umbraculifera'

Native to Japan. Multi-trunked evergreen grows 20' tall and wide, often vase shaped and flat topped in form. Can suffer damage from heavy snow load. Bark is orange in color.

Vanderwolf's Limber Pine

Pinus flexilis 'Vanderwolf'

Native to western Rocky Mountains of the United States. Medium sizes evergreen grows to 50'. Needles in bundles of 5 are up to 3.5" long and bluish-green. "Vanderwolf's" is the most popular cultivar. The needles are bright blue-green.

Variegated Norway Maple

Acer plantanoides 'Drummondii'

Native to Europe. A variegated form of Norway Maple. Has light green leaves with a creamy white edge. Slow growing. Frequently reverts to green sections which must be removed.

Washington Hawthorn

Crataegus phaenopyrum

Native to eastern United States. Medium-sized deciduous tree grows to 30' x 30'. White flowers in early June. Small orange-red fruit persist into winter. Attracts birds. Branches are covered in thorns. Prefers moist soil in full sun.

Weeping Alaska Cedar

Chamaecyparis nootkatensis 'Pendula'

Native to coastal regions of North America from Alaska south to Oregon. Medium growth rate to 30' to 45' tall. An evergreen tree that prefers deep, moist, well-drained soil in full sun. "Pendula" is an extremely hardy cultivar with strongly weeping branches and deep green foliage.

Weeping Blue Atlas Cedar

Cedrus atlantica 'Glauca Pendula'

Native to Atlas Mountain of northwestern Africa. Evergreen tree with blue needles. Prefers deep moist soils, but tolerant of dry sandy soils. Tolerant of pollution and urban conditions. Needs protection from wind, especially in winter. "Glauca Pendula" must be pruned and staked when young to develop a good form. Very popular in modern landscapes. Typically grows to 15'.

Weeping Higan Cherry

Prunus subhirtella 'Pendula'

Native to Japan. Deciduous weeping tree, grows to 40'. Fast growth rate. Pink flowers in April. Prefers well-drained soil in full sun. Easily transplants and is cold tolerant. Tends to be short lived.

Weeping Norway Spruce

Picea abies "Pendula"

Norway spruce are evergreens native to Europe. "Pendula" is a weeping form, typically upright and narrow. Used as a specimen plant.

Weeping White Pine

Pinus strobus

Pendula

White Pines are native from New England to Georgia and west to the mid-west. An evergreen with 4" long 5 bundled needles that are soft with a bluish cast. "Pendula" is a weeping form with branches that twist and droop. Makes an interesting addition to the landscape.

White Cascade Crabapple

Malus 'White Cascade'

A hybrid crabapple. Deciduous, white-flowered weeping form grows to 15'. Blooms in early May. Small yellow fruit in winter. Crabapples are adaptable but prefer slightly acidic, moist soil. Avoid wet sites. This variety shows good disease resistance.

White Fir

Abies concolor

Native to the western United States. Conical evergreen, grows to 75'. Soft foliage has a blue cast. Tolerant of most climates and urban conditions. Prefers deep, well-drained soil in full sun. Most adaptable of all the firs.

White Flowering Dogwood

Cornus florida

Native to eastern United States. Small deciduous tree to 30' x 30'. Flowers are small yellowish green surrounded by 4 bracts. Blooms in mid May. Small red fruits are eaten by birds. Prefers cool, moist, acidic soil in full sun. Not tolerant of heat, drought, pollution or road salt. Dogwoods have a host of problems that can severely stress or kill the tree. 

White Fringetree

Chionanthus virginicus

Native to southeastern United States. Deciduous small tree grows to 20'. Growth rate is slow. White fringe-like flowers are very showy and lightly fragrant. 

White Oak

Quercus alba

Native to eastern United States. Large deciduous tree grows to 80' tall and as wide. Mature leaves are a dull blue-green turning a purple-red in autumn. Acorns are 1" long, mature in a single season and can be quite numerous. A slow growing tree that prefers full sun and acidic soils. Does not transplant well.

White Pine

Pinus strobus

White Pines are native from New England to Georgia and west to the mid-west. An evergreen with 4" long, 5 bundled needles that are soft with a bluish cast. Can grow to 80' or more. Fast-growing easily transplanted tree that prefers moist, well-drained, acidic soil in full sun. Cones are light brown and up to 8" long. Not very tolerant of salt and pollution.

Whitebarked Himalayan Birch

Betula jacqeumontii

Native to western Himalayas. Moderate growing tree grows to 30'. Bark is pure white. Not heat tolerant and tends to be short lived.

Yellow Poplar/Tulip Tree

Liriodendron tulipifera

Native to eastern United States. A large deciduous tree that easily reaches 70' to 90' tall. Trees of 150' or more are common. Leaves and flowers are tulip shaped. Autumn color is golden yellow. Flowers are yellow green with an orange base. Prefers deep, moist, slightly acidic soils in full sun. Needs ample room to develop. Ahpids and sooty mold could be problematic.

Yoshino Cherry

Prunus x yedoensis

Native to Japan. Deciduous tree, grows to 40'. Upright spreading shape, moderate growth rate. Blooms in late April. Flowers are white to pale pink. Very showy in bloom. Prefers well-drained, moist, acidic soil in full sun. 

Young's Weeping Birch

Betula pendula

Youngii

Native to Europe and northern Asia. Deciduous tree, grows to 20'. "Youngii" is a weeping form that lacks a central leader and has very pendulous branches. Tends to be short lived. Makes an interesting small specimen tree.