Class I Trees

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Class I Trees CLASS I TREES Red Buckeye Golden Glory Dogwood Golden Desert Ash Aesculus pavia Cornus mas ‘Golden Glory’ Fraxinus excelsior ‘Aureafolia’ Height: 20’ Height: 20 - 25’ Height: 20’ Spread: 20’ Spread: 15’ Spread: 18’ Hardiness: -20 Hardiness: -15 Hardiness: -15 A small tree with a rounded or shrubby habit. More upright and free flowering than species (Corne- Small rounded tree with bright yellow twigs Lustrous dark green palmate leaves accent the liancherry Dogwood). The tree takes on a mounded shape, and golden stems. Foliage emerges yellow red flowers in April and May. No appreciable fall like an inverted pear. Great show of yellow flowers in and greens slowly through the spring and early color. Some tolerance for shade, drought and spring and later bright red fruit. Foliage is dark green and summer turning back to gold in late summer. poor soils. turns purple in fall. Excellent tree for contrast. Beautiful specimen, great contrasting tree and attractive in winter. Autumn Brilliance Serviceberry Lavalle Hawthorn Amelanchier x grandiflora ‘Autumn Brilliance’ (treeform) Crataegus x lavallei Leprachaun Ash Height: 20’ Height: 25’ Fraxinus pennsylvanica ‘Johnson’ Spread: 15’ Spread: 20’ Height: 18’ Hardiness: -30 Hardiness: -40 Spread: 16’ Tree form of serviceberry with an upright A small, dense oval canopy tree with shiny dark green Hardiness: -25 spreading crown, white flowers and a reliable, foliage turning to bronzy copper-red in the fall. Usually True dwarf of green ash. Compact tapered oval bright red fall color. The fruit is edible. Tolerates thornless or with small one inch thorns. Quite free of rust shape, rounding with maturity. Foliage is glossy some drought. and very adaptable. dark green, turns yellow in fall. Excellent tree for restricted areas. Cumulus Allegheny Serviceberry Thicket Hawthorn Amelanchier laevis ‘Ohio Pioneer’ Amur Maackia ‘Cumulus’ (treeform) Crataegus punctata Maackia amurensis Height: 25’ var. inermis Height: 25’ Spread: 20’ Height: 20 - 30’ Spread: 25’ Hardiness: -30 Spread: 25 - 35’ Hardiness: -25 A serviceberry with a distinct upright and oval Hardiness: -20 A small round headed tree. Leaves emerge a tree habit, fleecy white flowers in spring and a Broad-rounded tree, low branching usually silvery gray and gradually become dark green. yellowish to orange-scarlet fall color. Smooth Fragrant pale white flowers light the tree in July gray bark. becoming wider than tall at maturity. Thornless variety with excellent vigor. Foliage is gray green, contrasted by and August. Bark peels with maturity exposing abundant white flowers in spring and dark red fruits in a shiny amber to brown color, becoming curly American Hornbeam in texture. Prefers moist, well drained soil, but is Carpinus caroliniana September and October. Fruits are usually persistent add- quite adaptable to environmental conditions. Height: 25’ ing interest in winter. Spread: 25’ Hardiness: -40 Winterberry Euonymus Merril Loebner Magnolia A small tree with an irregular spreading habit, Euonymus bungeanus Magnolia x loebneri ‘Merrill’ with a rounded outline. Dark green leaves Height: 20’ Height: 30’ change to yellow, orange and scarlet in the Spread: 20’ Spread: 30’ fall. Smooth, gray, irregular twisting bark adds Hardiness: -20 Hardiness: -30 interest in winter. Will grow in heavy shade and A small, rounded or shrubby tree with pendulous An upright habit becoming round with age. wet soils. branches. Leaves are light green and flowers are yellow. A Leaves are thick and rigid, dark green and turn beautiful tree in fruit. yellow in fall. Flowering peaks in April, where Pagoda Dogwood the tree resembles a white cloud covered with Cornus alternifolia fragrant snowy blossoms. A vigorous grower European Euonymus Height: 25’ and cherished landscape tree. Spread: 20’ Euonymus europaeus Height: 15-30’ Hardiness: -30 Yulan Magnolia This small tree has a distinctive horizontal Spread: 10-20’ branching habit and will develop a flat-topped Hardiness: -30 Magnolia denudata Height: 35’ crown. Masses of creamy white flowers are A narrowly upright tree in youth broadening as it ages Spread: 30’ produced in early summer. Blue/black clusters with a rounded outline when mature. Early leaf out with a of fruit in late summer. Fall foliage is a mix of flat dark green color turning from yellow to reddish purple Hardiness: -30 yellow, to red/purple. in fall. Fruits ripen pink to red in September and are quite Tree with spreading branches somewhat ir- attractive. regular, producing an informal outline. Leaves Kousa Dogwood are thick and resilient turning yellow in fall. Cornus kousa Korean Evodia Flowers are fragrant, white and 4-6 inches wide, blooming in spring. Height: 25’ Evodia daniellii Spread: 20’ Height: 25 - 30’ Hardiness: -20 Spread: 25 - 30’ Elizabeth Magnolia A small tree, vase shaped in youth, forming a Hardiness: -20 Magnolia x ‘Elizabeth’ rounded habit with distinct horizontal layering Interesting small tree with a rounded shape. Lustrous Height: 30-40’ of the branches and exfoliating bark with age. dark green foliage complemented by profuse white flow- Spread: 20’ Creamy, white bracts, resembling flowers, in ers borne on stalks in June and July. No major insect or Hardiness: -30 spring, dark green leaves that change to reddish disease problems. Great mix of structure and ornamental Compact oval tree, tall for a magnolia. Glossy purple in the fall. display for urban area. green tough leaves and yellow flower (unique for magnolias), 6 inches wide and fragrant, C. ‘Satomi’ bloom in spring before the leaves break. Pink flowered selection. Very ornate with layered branches. Galaxy Magnolia Flowering Crabapples Persian Parrotia Magnolia x ‘Galaxy’ Malus sp. (White Flowers) Parrotia persica Height: 20 - 25’ Hardiness: -20 (-30) Height: 20 - 30’ Spread: 15’ Spread: 15 - 25’ Hardiness: -20 Malus ‘Adirondack’ Hardiness: -20 A tree form magnolia with a strong central Height: 18’ Small single stemmed tree with upright to wide leader and pyramidal to oval shape. The foliage Spread: 10’ spreading branches, oval outline. Pink to purple is lustrous green and flowers are large, 8 to 10 Densely upright inverted cone shape. The cut of this emerging leaves blend to glossy green and inches wide, blooming in spring on bare stems, cultivar combined with an overabundant white flowers turn a beautiful succession of yellow to orange pink outside and white inside. Good selection in spring makes this a “standard” to which other flower- to red in fall. An excellent selection for streets for a landscape or street where space is limited ing crabs are compared. Bright red fruits carry interest and landscapes, given size, color display and or confined. through winter. remarkable resistance to pests and disease. Royal Star Magnolia Harvest Gold Crab Cascade Snow Cherry Magnolia stellata ‘Royal Star’ Malus ‘Hargozam’ Prunus ‘Berry’ Height: 20’ Height: 25’ Height: 25’ Spread: 15’ Spread: 15’ Spread: 20’ Hardiness: -30 Upright, moderately columnar habit. White flowers in Hardiness: -20 A hardy, compact, rounded tree with deep spring are but a precursor to the golden fruits which adorn Upright spreading vase form. Large pure white green foliage and yellow fall color. The large this tree through winter making it a show stopper in the flowers cover this tree in spring followed by fragrant flowers bloom in early spring, before landscape. glossy dark green foliage which turns yellow- the leaves break. An excellent ornamental tree ish to bronze-orange in fall. This cultivar has for small sites in urban landscapes. Malus ‘Professor Sprenger’ shown an increased resistance to diseases that Height: 20’ affect other ornamental cherries. Spread: 20’ Flowering Crabapples Stark upright habit makes for a larger more stately looking Malus sp. (Red Flowers) tree than other crabs. Red buds bloom white with pink Prairie Gem Pear Hardiness: -20 (-30) tones ripening to orange-red fruits and endure on the Pyrus ussuriensis ‘Mordak’ noble frame through winter. Height: 25’ Malus ‘Adams’ Spread: 20’ Height: 20’ Malus ‘Sentinel’ Hardiness: -30 Spread: 20’ Height: 20’ Densely branched and compact tree with a Dense and rounded symmetrical habit. Pink Spread: 12’ round canopy. Leaves are bright green, thick flowers, red persistent fruit. Vase shaped, an unusual form for a crab makes its mark and leathery turning golden yellow in fall. as an excellent street tree under power lines. Flowers are White flowers blanket the tree in early spring. American Masterpiece white with a touch of pink , fragrant, with bright red fruits Excellent pear for urban plantings. Malus ‘Amazam’ that carry through the winter. Height: 25’ Ivory Silk Lilac Spread: 18 - 20’ Malus ‘Spring Snow’ Syringa reticulata ‘Ivory Silk’ Pyramidal habit. Bright red leaves emerge and Height: 25’ Height: 25’ mature to dark maroon. Brilliant red flowers Spread: 20’ Spread: 15’ change to unique pumpkin orange fruits in fall Dense and oval shaped, quite large for a flowering crab. Hardiness: -20 that persist through winter. Flowers are white and sterile, the tree is without fruit and Tree form lilac, oval and compact with upward is an excellent addition to the landscape where dropping curving branches. Foliage is dark green, flower- fruits would be objectionable. Klehm’s Improved Crabapple ing when young. Displays large white flower Malus ‘Bechtel’ clusters in early July. Excellent choice for beauty Sugar Tyme Crabapple Height: 15 - 20’ and adds variety to urban landscapes. Malus ‘Sutyzam’ Spread: 15 - 20’ Height: 18’ Rounded form, dense dark green foliage, turn- Spread: 15’ ing orange to orange red in fall. Large double Upright spreading with a somewhat irregular oval outline. pink flowers cover the tree in spring. Improved Great informal character, smothered in sweet white flowers strain for disease resistance. Seldom fruits, very in spring. Fruits are wine red and persist through winter. tidy tree. Golden Raindrops Crabapple Centurion Crabapple Malus transitoria ‘Schmidtleaf’ Malus ‘Centzam’ Height: 20’ Height: 20’ Spread: 15’ Spread: 15’ Hardiness: -20 Narrow upright habit, spreading slightly with Upright vase shaped habit. Very unusual cherry, with maturity.
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