Parker Arboretum Tree Descriptions Concolor Fir Abies concolor • Native to the western United States, especially the Rocky Mountain regions. • Pyramidal evergreen with soft, short blue-green needles. Also known as White Fir. • Upright cones are about 5" long, pale green with a deep purplish cast, changing to brown at maturity. • Mature height 60’, spread 25’
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Rocky Mountain Maple Acer glabrum Native range from southeastern Alaska to northern California, east to Idaho and Montana and south to New Mexico. Small growing ornamental tree, often in a clump (multi stem) form. Fall color can range from yellow to orange to red. Mature height 30’, spread 25’ Bigtooth Maple Acer grandidentatum Native to the Rocky Mountains. Small growing ornamental tree/large shrub with five-lobed dark green leaves. Fall color ranges from yellow to orange to red. Tolerant of dry, alkaline soils. Mature height 30’, spread 25’
Paperbark Maple Acer griseum • Native to central China. • Small growing ornamental tree with unique cinnamon-colored, exfoliating bark. • Dark green leaves with a muted red fall color. • Upright, oval growth habit. • Mature height 25’, spread 20’ State Street™ Miyabe Maple Acer miyabei ‘Morton’ (State Street™) • Native to Hokkaido, Japan, selection from the Morton Arboretum in Lisle, Illinois. • Slow to medium rate of growth, upright ascending branches, cold hardy and adaptable to a wide range of landscape conditions. Excellent substitute for Norway Maple. • Butter yellow to gold-yellow fall color, mottled gray and tan bark. • Mature height 45’, spread 30’
Fairview Maple Acer platanoides ‘Fairview’ • A variety of Norway Maple (originally native to Europe). • Upright branching habit, new foliage is very dark red turning to dark green as the leaf matures; gold fall color. • Similar to Schwedler and Deborah Maples, fairly rapid growth rate. • Mature height 60’, spread 30’
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Tatarian Maple Acer tataricum Native to southeastern Europe and western Asia. Similar to Amur maple, but more tolerant of alkaline soils. Small ornamental tree, often in a clump form with wide spreading branches. Winged seeds are a showy red as they emerge. Fall color red to yellow, not as showy as Amur Maple. Mature height 20’, spread 20’
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Amur Maple Acer tataricum subsp. ginnala Native to central and northern China, Manchuria, and Japan. Also known as Ginnala Maple. Informal, small ornamental tree with excellent red fall color. Available as a single stem tree and in clump form. Mature height 20’, spread 12’
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Pacific Sunset® Maple Acer truncatum × platanoides ‘Warrenred’ (Pacific Sunset®) • Hybrid cross between Norway Maple (native to Europe) and Shantung Maple (native to China, Manchuria and Korea). • One of the best medium sized shade trees available today, upright spreading rounded growth habit. • Fall color will vary from yellow-orange to an almost burgundy red color. • Mature height 30’, spread 25’ Ft. McNair Horsechestnut Aesculus × carnea ‘Ft. McNair’ • Hybrid cross between Horsechestnut (native to Greece and Albania) and Red Buckeye (native to the southeastern United States). • Rounded crown, with large dark green leaves of five leaflets. • Flowers in April-May are pink with a yellow throat. • Mature height 40’, spread 30’ Yellow Buckeye Aesculus flava • Native to the eastern United States. • Larger growing shade tree that doubles as an ornamental tree, upright oval growth habit. • Yellow flower spikes in mid May, followed by smooth husk containing 1 to 2 nuts (“buckeyes”). • Leaves are palmately compound, containing 5 to 7 leaflets; fall color is a subdued yellow-orange. • Mature height 60’, spread 40’ Autumn Brilliance Serviceberry Amelanchier × grandiflora ‘Autumn Brilliance’ • Hybrid cross, that does not occur naturally, between Amelanchier laevis and Amelanchier arborea, which are both native to eastern and north central United States and Canada.
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Very ornamental tree with white spring flowers. Edible red berries appear in June, favored by birds. Outstanding orange/red fall color. Available as a single stem tree and in clump form. Mature height 20’, spread 15’
Heritage® River Birch Betula nigra ‘Cully’ (Heritage® River Birch) • Native to the eastern and mid western United States. • Strongly exfoliating bark with orange, gray, and lavender colors, combined with a multitrunked form, is the ornamental highlight of this species. • Resistant to Bronze Birch Borer, rapid rate of growth. • Golden-yellow fall color. • Mature height 60’, spread 40’ Rocky Mountain Birch (Western River Birch) Betula occidentalis • Native to western North America from southern Alaska to southern Manitoba and North Dakota, south and west to southern California and New Mexico. • Very attractive native birch with slender, arching, cherry-brown branches covered with white dots. • Light to medium green leaves turn golden yellow in the fall. • Clump form tree; resistant to Bronze Birch Borer. • Mature height 20’, spread 20’
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Sutherland Caragana Caragana arborescens ‘Sutherland’ Parent plant is native to Mongolia and Siberia. Unique ornamental v-shaped multi-stemmed tree. Very upright and narrow growth habit, drought tolerant. Well adapted to exposed, cold and dry sites – a true zone 2 plant. Shiny bronze-yellow bark, non-suckering. Yellow flowers in early June. Mature height 15’, spread 3’
European Hornbeam Carpinus betulus • Native to Europe and Asia Minor. • Upright oval growth habit, becoming more spreading with age, medium rate of growth. Formal and symmetrical in appearance. • Bark is smooth and steel gray, sometimes having a rippled muscular character to its surface, fall color is golden-yellow. • Mature height 40’, spread 30’ American Hornbeam Carpinus caroliniana • Native from Nova Scotia to Minnesota, south to Florida and Texas. • Also known as Blue Beech, Ironwood or Musclewood. • Very hard wood; older branches are slate gray with the appearance of a flexed muscle. • Yellow fall color. • Mature height 25’, spread 25’
Shagbark Hickory Carya ovata • Native from Quebec and southwest to Texas. • A large deciduous tree with a very straight central leader, cylindrical in form with both ascending and descending branches, deep yellow green leaf color. • The fruit is a 1 to 1 ½” diameter nut surrounded by a thick shell, edible, with a sweet taste. • Old bark shags into long plates, generally free at the bottom, attached at the center. • Leaves have an apple fragrance when crushed, yellow to gold fall color. • Mature Height 70’, spread 50’
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Catalpa Catalpa speciosa Native to central United States. Upright, coarse textured tree with large heart shaped leaves. Very few insect/disease problems. Showy white flowers late May/early June, followed by long cigar-like seed pods. Wood can be brittle, causing breakage with early fall and late spring snowstorms. Mature Height 50’, spread 30’ Western Hackberry Celtis occidentalis Native from Quebec and southwest to Oklahoma. Fast rate of growth, coarse texture, cylindrical in form when mature. This tree is often thin and unstructured in appearance when young, but grows into a symmetrical, attractive shape. Tolerant of a wide range of soil conditions, easily transplanted. Yellow fall color. Mature height 60’, spread 40’
Katsura Tree Cercidiphyllum japonicum • Native to Japan and China. • Can be difficult to transplant. • Leaves are heart shaped, small (2 to 4”), purplish when unfolding, turning to dark green to bluish green. • Fall color is yellow to apricot-orange, variable. Autumn leaves give off a spicy, brown sugar odor. • Mature height 40’, spread 30’ White Fringe Tree Chionanthus virginicus • Native to southeastern and south central United States; adapted to zone 5 and warmer parts of zone 4. • A small deciduous tree, the shape ranges from irregular and open to dense and rounded. • White, fringe-like flowers in loose clusters 4” to 8” long, very showy, slightly fragrant, late May to early June. Fruit appears on female plants only, and is a blue-black berry favored by birds. • One of the last deciduous trees to leaf out in the spring; fall color can range from yellow to gold. • Mature height 15’, spread 15’ Yellowwood Cladrastis kentukea • Native to eastern United States in the southern Appalachian Mountains where it grows in dry limestone outcroppings and stream banks. • Rounded vase shape, medium to slow growing; pinnately compound foliage with copper to yellow fall color. • Smooth gray to brown bark; freshly cut wood is bright yellow (once used for dyes).
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Pendulous clusters of fragrant white flowers in the spring. Mature height 40’, spread 20’
Turkish Filbert Corylus colurna • Native to southeastern Europe. • Pyramidal crown, medium texture, moderate growth rate. • Tolerant of extreme conditions, but may be difficult to find. • Yellow to purplish-red fall color. • Mature height 35’, spread 25’ • • • • •
Russian Hawthorn Crataegus ambigua Native to southeastern Russia. White flowers borne in profusion in May followed by persistent red fruit in August. Has fine textured dissected foliage and very few thorns. Attractive horizontal branching, bark is golden yellow and exfoliating. Mature height 25’, spread 25’
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Cockspur Thornless Hawthorn Crataegus crus-galli ‘Inermis’ Native to Quebec down through North Carolina. Slow rate of growth, medium texture. White, fragrant flowers in spring, lasting about a week, followed by clusters of small red ornamental fruit that persists through late fall. A virtually thornless variety, relatively disease resistant. Mature height 20’, spread 15’
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Crimson Cloud Hawthorn Crataegus laevigata ‘Superba’ Native to Europe, hardy to zone 4. Slow rate of growth, rounded crown. This cultivar has red flowers that are single and contain a white region in the center. Fruit is shiny red; more resistant to leaf blight than ‘Paul’ Scarlet’ hawthorn. Mature height 20’, spread 20’
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Winter King Hawthorn Crataegus viridis ‘Winter King’ Native to eastern United States down through Texas. Rounded, wide spreading crown, slow rate of growth. White flowers in the spring, distinctive gray bark. True multiple season interest – the fall/winter fruit show can be spectacular, with profuse, persistent bright red fruit and excellent orange/red fall color. Mature height 20’, spread 20’
Copper Beech Fagus sylvatica ‘Cuprea’ • This is a cultivar of a tree that is native to Europe. • Leaves are a deep red-purple, maturing to a rich bronzy green color in the summer. • Reddish-bronze fall color, leaves tend to persist through the winter. • Smooth, light gray bark with olive-brown twigs and stems. • Mature height 50’, spread 35’
Fallgold Black Ash Fraxinus nigra ‘Fallgold’ • Black Ash is native to the northeastern United States, extending north from the Mason-Dixon Line to western Ontario and east to the Maritimes. This cultivar (‘Fallgold’) does not occur naturally. • Resistant to clear-wing Ash Borer, very hardy. • Upright oval growth habit, excellent tree for sites with poor drainage. • Pinnately compound leaves have an outstanding golden-yellow fall color. • Mature height 45’, spread 30’ Ginkgo biloba ‘PNI 2720’ (Princeton Sentry® Ginkgo) Princeton Sentry® Ginkgo • Ginkgo is native to eastern China. This cultivar (Princeton Sentry®) does not occur naturally. • Unusual bright green fan shaped leaves, brilliant yellow fall color. • Insect and disease resistant. • A non-fruiting male form, this tree assumes an upright habit that tapers to a point. • Mature height 60' , spread 25'
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Kentucky Coffeetree Gymnocladus dioicus Native to New York, Pennsylvania to Minnesota, Nebraska, Oklahoma, and Tennessee. Seeds were used as a coffee substitute by early settlers in Kentucky....then a Starbucks opened. Good thing, as the seeds have toxic properties. Open spreading branches with bluish-green leaves, turning yellow in the fall. Minimally branched when young, increasing in density as time goes on. Very picturesque tree in winter, due to interesting bark and open form. Mature height 60’, spread 50’
European Larch Larix decidua • Native to Europe. • A deciduous conifer with pyramidal form and horizontal branching habit. • Needles are soft, short and light green, turning yellow in the fall. • Tolerates moist and clay soils. • Mature height 70’, spread 30’ Sweetgum Liquidambar styraciflua • Native to bottomlands of the eastern United States • Aromatic twigs with star-shaped leaves, slow growing. • Outstanding red fall color retains leaves late into the fall. • The spherical and spiny prominent green fruits arise from lateral spur shoots and are suspended on long stems, slowly turning to brown in fall. Fruiting occurs after the first 15 years of life. • Mature height 75’, spread 50’ Tuliptree Liriodendron tulipifera • Native to the eastern United States. • Tall, fast growing, deciduous tree known for its straight trunk and unusual flowers. • The green leaves are unique in appearance, squared with a truncate base, golden-yellow fall color. • Tulip shaped flowers in the spring are greenish-yellow with an orange base. Often the tree does not flower until it reaches at least 15 years of age, and even then only sparsely in the uppermost reaches of the tree, making the upright-held flowers more difficult to notice and appreciate. • Mature height 90’, spread 50’
Amur Maackia Maackia amurensis • Native to Manchuria, China, hardy to zone 4. • Short main trunk that splits into many main branches 2' to 3' from the ground, rounded shape, clean, attractive form. • Foliage is mostly toward the outer part of the canopy; leaves are alternate, pinnately compound. • Blooms in June/July with dull white pea-like flowers in upright, 4 to 6” tall clusters. Flowers smell like fresh mown grass. No fall color – leaves drop green. • Mature height 30’, spread 20 to 30’ Royal Star Magnolia Magnolia stellata ‘Royal Star’ • Native to Japan, hardy to zone 4. • Branching is upright spreading and multi-stemmed. Shape is upright oval to rounded and takes the shape of a densely branched large shrub. • Leaves are elliptic, smaller than other magnolias, and form a dense dark green mass. • White flowers open from pink buds, much later than other magnolias. • Mature height 10’, spread 6 to 8’.
* Saucer Magnolia • • • • • •
Magnolia × soulangiana A cross between M. heptapeta and M. liliiflora which are both native to Japan. Often grown as a medium to large shrub. A prolific bloomer, the large 3 to 6” diameter flowers appear in early spring before the leaves. Flowers range from purple to light pink, and consist of 6 large waxy petals in a goblet arrangement. Prefers a moist, well-drained soil. Mature Height 30’, spread 25’
* Adams Crabapple • • • • •
Malus ‘Adams’ A larger, dense and rounded crabapple, disease resistant. Single dark pink flowers in May, small red fruit is persistent. New foliage has a reddish tint, turning to dark green in the summer. Showy orange-red fall color. Mature height 20, spread 20’
Brandywine Crabapple Malus ‘Brandywine’ • Similar to Klehm’s Bechtel crabapple, but better symmetry and vigor. • Deep rose-pink double flowers in the spring, walnut sized yellow fruit in the fall. • Leaves have a slight tint of burgundy-purple, turning deep purple in the fall. • Mature height 25, spread 20’ David Crabapple Malus ‘David’ • A compact, rounded tree with white flowers and abundant red fruit. • Buds are pink in the spring, opening to white. • Fruit is small (½”), red and persists through the winter. • Excellent disease resistance. • Mature height 20’, spread 20’
Harvest Gold® Crabapple Malus ‘Hargozam’ (Harvest Gold®) • Upright, wide columnar crown. • Single white flowers appear one week later than most crabapples. • ½” diameter fruits are very persistent. They maintain a clear yellow color well into late November or early December in most years before they start to brown. • Mature height 20’, spread 20’ Prairifire Crabapple Malus ‘Prairifire’ • Developed at the University of Illinois, introduced in 1962. • Purple-red leaves emerge in spring, turning to green with a red cast. • Beautiful pink flowers in the spring, followed by small dark red-purple persistent fruit. • Excellent disease resistance. • Mature height 20’, spread 20’ Sargent Tina Crabapple Malus toringo subsp. sargentii ‘Tina’ • Parent tree is native to Japan. • Smallest available crabapple, often grafted onto a standard trunk. • Bright red buds open to single white flowers in late spring. • Small red fruits persist into late fall/early winter. • Mature height 6’, spread 10’ Dawn Redwood Metasequoia glyptostroboides • Native to western China. • Another deciduous conifer, very uniform and symmetrical in growth habit. • Needles are flattened, feathery in nature, with an orange-brown fall color. Very fine textured tree. • Tolerates heavy soils; late season growth may be damaged by early frosts. • Mature height 70’, spread 25’ Black Tupelo Nyssa sylvatica • Native to northeastern United States down through Texas, hardy to zone 4. • A large deciduous tree that is pyramidal when young, maturing to a flat-topped crown. Horizontal branching habit. • Fall color extremely showy, ranging from florescent yellow to orange to red and purple. • Insignificant flowers, small dark blue fruit on female trees only. • Prefers moist, well drained, acidic soils. • Mature height 50’, spread 30’ American Hophornbeam/Ironwood Ostrya virginiana • Native to eastern United States, zone 4, typically occurs as an understory tree in dry woodlands. • Trunk and main branches develop a fluted or “muscle-like” appearance. Bark forms vertical strips that exfoliate at the ends. Both bark and trunk features are ornamentally attractive. • Flowers are not particularly ornamental; fruit clusters look fruit of hops, thus the common name Hophornbeam. • Small to medium-sized tree, shape is pyramidal when young, rounded when mature. • Mature height 30 to 50’, spread 30’
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Persian Ironwood Parrotia persica Native to Persia - northern Iran and the Caucasus of Georgia and Turkey. New leaves emerge light green with burgundy edges; fall color begins in late August, starting out bronze, turning to crimson, then orange and lastly brilliant gold. An extremely durable tree from the witch hazel family, it is drought tolerant and has no insect/disease problems. Mature height 20, spread 20’
Amur Corktree Phellodendron amurense ‘Macho’ • Native to China, Manchuria and Japan. This is a male selection that does not produce the weedy seedlings and fruit mess normally associated with the species. • These trees tend to grow significantly wider than they are tall, with broad spreading branches. • The bark is conspicuously ridged and furrowed, light gray in color, soft and cork-like to the touch. • Foliage gives off a turpentine odor when crushed. Fall color is yellow, not particularly showy. • Easily transplanted and very pest free. • Mature height 35’, spread 20’ Black Hills Spruce Picea glauca ‘Densata’ • Native to northwestern North America, zone 2. • State tree of South Dakota • Slow growing, with dense, dark green foliage, withstands, wind, heat, drought and cold. • Needles are stiff and pointed, and can range in color from bright green to bluish green. • Mature height 40’, spread 25’ Serbian Spruce Picea omorika • Native to southeastern Europe, zone 4. • Evergreen tree with pendulous branches and a narrow, conical shape. • Slow rate of growth, tolerates city conditions well. • Best if protected from strong winter winds. • Mature height 60’, spread 25’
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Bristlecone Pine Pinus aristata Bushy, irregularly shaped pine with dark green needles dotted with white pitch. Very slow growing. Bristlecone pines are some of the oldest living organisms on Earth, with some estimated to be over 4000 years 0ld. Drought tolerant once established. Must have good drainage - do not plant in irrigated lawn areas! Also referred to as Foxtail Pine. Mature height 25, spread 15’
Lacebark Pine Pinus bungeana • Native to China. • Pyramidal in growth habit when young, maturing to a more rounded, spreading form. • Bark is lightly exfoliating (peeling), showing multi-colored areas of green, gray and reddish tones, reminiscent of Sycamore in pattern if not in color – very ornamental. • Slow rate of growth, generally free of insect and disease problems. • Mature height 35’, spread 20’
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Piñon Pine Pinus edulis Native to western and southwestern United States. Slow rate of growth, excellent drought tolerance. This plant is extremely important to wildlife as a food source. The edible nuts are a southwestern delicacy. Mature height 30’, spread 20’
Vanderwolf’s Limber Pine Pinus flexilis ‘Vanderwolf’s Pyramid’ • Parent tree is native to the Rocky Mountains of the western United States. • Stems/branches very flexible, slow to medium growth. • Broad, upright, pyramidal habit, with bright blue-green needles. • Mature height 35’, spread 20’ Bosnian Pine Pinus heldreichii var. leucodermis • Native to the west Balkan peninsula, including Albania, Bulgaria, Greece and Yugoslavia. • Prefers a dry, gravely soil. Very slow growing (3” to 6” per year). • Stiff, dark green needles, cobalt blue cones, very cold hardy and salt tolerant. • Growth habit is conical and very symmetrical. • Mature height 35’, spread 20’
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Ponderosa Pine Pinus ponderosa Native to western North America, hardy to zone 3. Narrow, upright, oval form in youth opens up into an irregular crown. Vanilla scent to stems when bruised. Can be difficult to transplant as a collected specimen – nursery grown stock is preferred. Mature height 80’, spread 30’
Southwestern White Pine Pinus strobiformis • Native to the mountains of western Texas, New Mexico, and southwestern Colorado, it extends south along the mountains to central Mexico; most of its distribution is in Mexico. • Slender and conical when young, maturing to more rounded and irregular form. • Soft, blue-green needles, 2 to 4” in length, silver gray-bark; develops large ornamental cones. • Also known as Mexican Pine, it is used in Mexico for cabinetry, doors and window frames. • Mature height 60’, spread 30’ Eastern White Pine Pinus strobus • Native to eastern North America (especially in the mountainous regions of Appalachia, New England, and Southern Canada) • Symmetrical upright pyramidal growth habit in youth, becoming more flat-topped and picturesque with advanced age. • Not particularly urban tolerant (i.e. poor soils, compacted soils, alkaline soils, pollution, drought). • Soft, blue-green to medium green 4” long needles. • Mature height 70’, spread 40’ Scotch Pine Pinus sylvestris • Native to large expanses of Europe and Asia. • Straight, well-branched evergreen with light green needles.
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Reddish-brown bark and cones, fast growing, hardy and wind resistant. Develops a more open branch habit with age. Mature height 40’, spread 25’
London Planetree Platanus × acerifolia ‘Bloodgood’ • Found growing in London in 1663, a cross between Platanus orientalis (Oriental Planetree) and Platanus occidentalis (American Sycamore). • Wide spreading, large tree, tolerant of city conditions. • Light green leaves, turning yellow in the fall. • Bark is mottled and flaking, resembling “dragon scales” – very unique appearance. • Mature height 65’, spread 35’ Chinese Apricot Prunus armeniaca • Native to Asia. • Beautiful, fragrant blossoms and delicious velvety soft fruits. Self pollinating. • Apricots are very early bloomers, which makes them susceptible to injury from late spring frosts. This variety blooms later than most, but can still be erratic in fruit production. Consider growing this tree for its beauty, and deem any fruit produced as a bonus. • Mature height 35’, spread 20’ Montmorency Cherry Prunus cerasus ‘Montmorency’ • Cherries are originally from Transcaucasia, Asia Minor and Persia. • Montmorency Cherries are used in jams, tarts, pies, etc., thus another common name is pie cherry. If the fruit are left on the tree to fully ripen, they may also be enjoyed fresh as sweet cherries. • Pink buds open to white blossoms, followed by ripe fruit (dark red with yellow flesh) in late June/early July. Self pollinating. • Mature height 15’, spread 10’ Princess Kay Plum Prunus nigra ‘Princess Kay’ • Discovered in the wilds of Minnesota, and introduced to the landscape trade by the Minnesota Landscape Arboretum; zone 3 – 9. • Colorado State University Plant Select tree for 2000. • Moderate to fast growing tree; highly fragrant double white blossoms appear before the leaves, develop a light pink color as they mature. • Bark is dark brown to black with white horizontal lenticels. Occasionally produces a spectacular red fall color. • Mature height 15 to 20’, spread 12 to 15’ Douglas Fir Pseudotsuga menziesii • Native to the Pacific coastal regions (northern Mexico to southern Canada) and Rocky Mountain regions of North America. • Upright pyramidal growth habit in youth, developing an upright yet irregular crown with age. • Medium to slow growth rate; blue-green flattened, soft needles. • Cones are about 3" long, slightly curved, with unique three-pronged seed bracts (resembling a three-forked snake's tongue) extending beyond the cone scales. • Mature height 65’, spread 25’
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Wafer Ash Ptelea trifoliata Native range from Ontario to New York, south to Florida, and west to Minnesota. Deciduous, shrub or low branched small tree, rounded form. Also known as Hoptree. Flowers in spring are inconspicuous, but fragrant. The fruit is a 1” diameter round, flattened tan wafer, brown at maturity. The fruit has been used as a substitute for hops in flavoring beer. Will grow in sun to heavy shade. Very adaptable, but best in well-drained soil. Mature height 20’, spread 20’
Ussurian Pear Pyrus ussuriensis • Species native to China, Viet Nam, Japan, and Korea. Also known as Chinese Pear. • Develops into a dense, round-headed small to medium sized tree. • The 1" diameter white flowers cover the plant prior to foliage emergence. The 1 1/2" yellow-green fruit matures in early September. They are not edible. • Leaves are glossy green in summer, turning yellow to purple in autumn. • Mature height 25’, spread 25’ Sawtooth Oak Quercus acutissima • Native to Japan, Korea, and China, and Himalayas. • One of the fastest growing oaks, this tree is easy to transplant. • Retains its brown leaves most of the winter, shedding them with new spring growth. • Acorn is oval in shape, with the cap covering ½ of the nut. Scales on the cap are very prominent, and resemble hair. Leaves have a very sharply serrate margin bearing bristle-tipped teeth. • Mature height 45’, spread 35’
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Swamp White Oak Quercus bicolor Native to the eastern United States. Hardy tree that grows well in clay soils, xeric in nature. Dark green leaves, turn reddish-bronze in fall. Mature height 50’, spread 40’
* Texas Red Oak • • • • •
Quercus buckleyi
Native to Texas and Oklahoma. Tolerant of alkaline soils, could turn out to be one of the best oaks for our area. Fall color is russet to scarlet red. Pyramidal growth habit, moderately fast growing for a hard wood tree. Mature height 25, spread 20’
Scarlet Oak Quercus coccinea • Native from Maine to Florida, west to Minnesota and Missouri. • Tolerant of Colorado’s alkaline soils, but has proven to be somewhat unreliable in Parker. • Brilliant red fall color is the best of any in the oak family. • Mature height 50’, spread 40’
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Bur Oak Quercus macrocarpa Native to eastern and central United States, hardy to zone 3. A large deciduous tree, columnar in youth, broad crown with age; coarse texture, slow growing.
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Flaky, distinctive bark, with corky ridges on bark and stems Mature height 70’, spread 35 to 50’
Chinkapin Oak Quercus muehlenbergii • Native to eastern and central United States. • Long lasting fall color is yellow, showy and develops late. • Wide spreading, rounded crown, medium texture. • Moderate rate of growth. • Mature height 45’, spread 35’ Regal Prince® Hybrid Oak Quercus robur ‘Fastigiata’ × bicolor ‘Long’ (Regal Prince®) • This selection is a cross between columnar English Oak (Quercus robur ‘Fastigiata’) and Swamp White Oak (Quercus bicolor). • Vigorous, oval upright growth habit. • The foliage is attractive all season long, with a silvery underside. • Tolerant of a wide range of conditions, including wet and dry soils. • Mature height 50’, spread 25’ Skymaster® English Oak Quercus robur ‘Pyramich’ (Skymaster®) • Parent plant is native to Europe, northern Africa and western Asia • This selection becomes pyramidal with widely diverging branches • The foliage may not hold up well in hot, humid climates. Leaves drop green in the fall, or turn brown and persist into winter. • Mature height 50’, spread 25’ • • • •
Northern Red Oak Quercus rubra Native from Nova Scotia to Pennsylvania, west to Minnesota and Iowa. The State Tree of New Jersey. Fast growing tree with spreading branches and a rounded crown. Leaves turn dark red, then a ruddy brown and orange in the fall. Mature height 50’, spread 30’
Shumard Oak Quercus shumardii • Native to the eastern and central United States. • Prefers moist, well drained soil, pH adaptable, urban tolerant, easily transplanted and long lived. • Pyramidal when young, rounded to oval-rounded at maturity. Fairly rapid growth rate. • Male flowers are pendulous and can be messy. Acorn production is heavy and can be a litter problem. • Outstanding red to orange fall color. Hazel Smith Giant Sequoia Sequoiadendron giganteum ‘Hazel Smith’ • This blue form of the 'Giant Sequoia' was selected by Don and Hazel Smith of Watnong Nursery in New Jersey. • Typical pyramidal form of the species, it is hardier than most selections of Sequoia. • Only hardy to 0 to 10 degrees above zero – best in a protected location. • Mature height 50’, spread 30’
* Swedish Whitebeam • • • • •
Sorbus intermedia Rich leathery leaves are oak-like in shape, dark glossy green on top, gray tomentose on the undersides. Clusters of creamy white flowers in late spring, followed by showy orange berries in September. Russet-orange to apricot fall color. Tolerant of alkaline soils. Mature height 35, spread 25’
Syringa pekinensis ‘Morton’ (China Snow®) China Snow® Pekin Lilac • A selection from the Morton Arboretum, that originated from seed collected in Gansu, China. • Graceful, upright rounded growth habit. • The bark starts out with a mahogany color that appears to be polished smooth, sprinkled with corky, beige lenticels. It adds greater interest with age when it begins to peel horizontally similar to paper birch. • Large clusters of cream-colored, lightly fragrant flowers that bloom in June. • Mature height 50’, spread 30’ Shawnee Brave® Bald Cypress Taxodium distichum ‘Mickelson’ (Shawnee Brave®) • Parent plant is native to the southeastern United States. • Another deciduous conifer, with an upright columnar form. • Foliage emerges bright yellow-green and matures to a soft green. • Fall color is an attractive warm reddish-brown. • Tolerates wet soils and strong winds. Relatively care-free. • Mature height 60’, spread 20’ Greenspire Linden Tilia cordata ‘Greenspire’ • Native to Europe, this tree has been in cultivation a long time. • Flowers are in loose drooping clusters, late June. Very fragrant, and attractive to bees. • Fruit is a small round nutlet with a leaf-like bract, attractive in late summer • Greenspire is the most commonly used cultivar of Littleleaf Linden, and is prized for its vigorous growth, uniformity of branching, straight trunk, crown symmetry and tolerance of difficult conditions. • Mature height 40’, spread 30’ Sterling Silver Linden Tilia tomentosa ‘Sterling’ • Parent tree is native to western Asia. • Large growing tree with a dense crown and ascending branches, upright growth habit. • Leaves emerge silvery and retain their blue-silver undersides all season. Yellow fall color. • Mature height 90’, spread 30 to 40’. Frontier Elm Ulmus carpinifolia × parvifolia 'Frontier' • Parent tree is native to Europe and northern Africa, hardy to zone 5. • This hybrid selection of Smoothleaf Elm is moderately resistant to Dutch Elm Disease. • Oval, upright growth habit, moderate rate of growth. • Glossy summer foliage turns reddish in the fall. • Mature height 40’, spread 30’.
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Accolade® Elm Ulmus japonica × wilsoniana ('Morton') Accolade® The parent tree is a hybrid between U. japonica and U. wilsoniana, originating from seed distributed in 1924 by the Arnold Arboretum of Boston, MA. This cultivar comes from the Morton Arboretum in Lisle, Illinois. Excellent heat and drought resistance. Resistant to Dutch Elm Disease, Phloem Necrosis and Elm Leaf Beetle. Arching limbs and graceful vase shape like that of the classic American Elm. Mature height 60’, spread 40’.
Triumph™ Elm Ulmus × 'Morton Glossy' (Triumph™) • This selection resulted from a controlled cross between the Vanguard™ elm and Accolade™ elm at The Morton Arboretum. • Oval growth habit, with strong upright branching and medium texture. Slight arching to branches as it matures. • Large dark green foliage with a yellow fall color, excellent resistance to Dutch Elm Disease and Elm Leaf Beetle. • Fast rate of growth when young (2 to 3 feet per year), slowing to 1 to 1.5 feet per year until maturity. • Mature Height 60’, spread 50’ Prospector Elm Ulmus wilsoniana ‘Prospector’ • This cultivar has Asian origins, and is a selection from Delaware, Ohio, released in 1990. • Vase shaped crown, similar to American Elm, but resistant to Dutch Elm Disease and Elm Leaf Beetle. • Dense canopy, yellow fall color and a moderately fast growth rate. • Prefers well drained soil, but tolerant of moderately adverse sites; requires regular pruning to maintain form due to its vigorous early growth. • Mature height 50’, spread 25’ 86 different species, 221 trees as of 7/10/06
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Xeric (low water use) trees New for 2006
