Tree species and varieties recommended for use as street trees in State College

Transcription

1 Tree species and varieties recommended f use as street trees in State College Key symbols used: Growth Habit Site Tolerance Seasonal Interest Columnar Requires full sun Fruit col/showy Vase Shaped Conical Rounded Prefers shade Po, dry soil Moist soil Flower col/showy Fall foliage/showy Spreading rban stresses S Salt A. SMALL TREES. Mature ht. less than 30ft. Minimum tree lawn 2ft; may be planted under wires. Species Growth Habit Site Tolerance Seasonal Interest Caution/ Comments Acer buergeranum Trident Maple *(TF) Small growing, 3 lobed leaf maple with few pests. May be damaged in ice stms. Slow growing and availability may be limited. A. ginnala Amur Maple (TF) Small growing, 3 lobed leaf maple, often multi-stemmed with abundant fruit set which may be colful. Does not lerate alkaline soil. A. tataricum Tatarian Maple (TF) Small growing maple with greenish white panicled flowers and noticeable green red fruit (samaras). Tolerates alkaline soil. A9-1 Slow growth. Susceptible Fruit may cause litter Has shown invasive tendencies in some parts of Ntheastern.S. Slow growing and availability may be limited. Susceptible

2 Amelanchier laevis Cumulus Cumulus Serviceberry Early white flowering tree with persistent edible fruit. Light coled bark with dark vertical striations provides interest throughout the year. Grows poly in full sun. A.x.grandifla Autumn Brilliance Autumn Brilliance Serviceberry Good growth habit with vibrant ange red foliage in the fall. Grows poly in full sun. A.x.g. Princess Diana Princess Diana Serviceberry Variety similar above but with bright red foliage in the fall. A.x.g Robin Hill Robin Hill Serviceberry Better tree fm than other varieties. Leaf diseases & fireblight may be Sensitive drought and salt. Leaf diseases & fireblight may be Sensitive drought and salt. Leaf diseases & fireblight may be Sensitive drought and salt. Leaf disease & fireblight may be Sensitive drought, salt & air pollution. Cercis canadensis Eastern Redbud Colful native tree that can be used as street tree and in woodland settings. Nitrogen fixating plant. Affected by canker and verticillium wilt. C.c. var alba White Flowering Redbud Similar above but with white flowers. Affected by canker and verticillium wilt. A9-2

3 C.c. Fest pansy Fest Pansy Redbud A red leaved variety of Eastern Redbud. Same as species. Cold hardness may be a Cnus kousa Kousa Dogwood A slow growing namental prized f its layered white blossoms. Edible fruit. Fall planting Exfoliating bark provides summer interest. Cnus kousa x C. flida Rutcan Constellation Dogwood Cross between our native Flowering Dogwood & Chinese Dogwood. Flowers after Flowering Dogwood & befe Kousa Dogwood. Cnus mas Cnelian Cherry Dogwood One of the first trees bloom in spring with small yellow flowers. Crataegus crus-galli var inermis (TF) Thnless Cockspur Hawthn Thnless native tree with attractive flowers. C. phaenopyrum Washingn Hawthn (TF) An attractive small tree plant in difficult locations. No fruit litter problems like other dogwoods. Resistant anthracnose & dogwood ber. Flaky bark provides year round interest. Basically pest free, suckers may be a Fall planting hazard Flowers may give off unpleasant od. Prone cedar apple rust. Fall planting Thns may be a Fall planting A9-3

4 C. punctata Ohio Pioneer Ohio Pioneer Hawthn (TF) Good tree f difficult sites. C. viridis Winter King Winter King Hawthn (TF) Tree selected from native plant. Magnolia stellata Star Magnolia (TF) May be used as street tree in sheltered location. Slow growing. Resistant fireblight. Fruit may cause litter Fall planting Bark provides year round interest. Suckering may be a Fall planting Susceptible verticillium wilt & magnolia scale. Slow growing. Fall planting M. galaxy Galaxy Magnolia (TF) Rapidly growing hybrid. M. x loebneri Merrill Merrill Magnolia (TF) Malus Prairiefire Prairiefire Crabapple (TF) Attractive small tree with reddish green summer foliage & reddish brown bark. S Flowers may cause litter Susceptible verticillium wilt & scale insects. Fall planting Fragrant flowers. Susceptible Fall planting Suckers may cause problem but no serious limitations. M. Sugar Tyme Sugar Tyme Crabapple (TF) Good street tree with upright branching when young. Suckers may cause problems. Good disease resistance A9-4

5 Prunus Okame Okame Cherry Branching me delicate and upright than other cherries. Fall planting P. virginiana Shubert Shubert Chokecherry Canada Red Cherry Colful red maroon foliage during growing season. Syringa reticulata Ivy Silk Ivy Silk Tree Lilac Good street tree f small spaces with attractive reddish brown bark. Suckers may cause problems. Young trees produce long, weak branches that may need pruned. Susceptible powdery mildew & lilac ber. S. r. Regent Regent Tree Lilac Me vigous than Ivy Silk. Susceptible powdery mildew & lilac ber. *(TF) Indicates that the tree fm should be specified when dering A9-5

6 Key symbols used: Growth Habit Site Tolerance Seasonal Interest Columnar Requires full sun Fruit col/ Vase Shaped Conical Rounded Prefers shade Po, dry soil Moist soil Flower colo Fall foliage Spreading rban stresses S Salt B. MEDIM TREES. Mature ht ft. Minimum tree lawn 3ft; most may be planted under wires. Species Growth Site Seasonal Caution/ Habit Tolerance Interest Comments Acer campestre Hedge Maple Slow growing tree with typical maple fm that can be planted under power lines. A. c. Queen Elizabeth Queen Elizabeth Hedge Maple Me upright than species. A. saccharum Goldspire Goldspire Sugar Maple Narrow compact tree with dark summer foliage. A. truncatum x A. platanoides Warrenred Pacific Sunset Hybrid Maple Susceptible verticillium wilt. Closely spaced trees can produce dense shade. This variety is me susceptible frost cracks. Also susceptible Sensitive salt. Very susceptible verticillium wilt. Not lerant of urban stresses Availability may be A9-6

7 Aesculus x carnea Briotii Ruby Red Hsechestnut Medium growing tree with very showy flowers. Betula nigra Heritage Heritage River Birch (TF) Good tree f ugh sites. Carpinus betulus European Hnbeam (TF) Salmon coled flaky bark Less sensitive heat & drought than other hsechestnuts. Availability may be Somewhat resistant bronze birch ber. ph sensitive. Requires pruning maintain clearance. Fall planting Fall planting C. b. Fastigiate pright European Hnbeam (TF) Very fmal looking tree. sually low branched. Fall planting Best if used in wide tree lawns park like settings. Requires little pruning. C. caroliniana American Hnbeam (TF) Also called muscle wood because of its smooth fluted bark. Grows well in small places. Sensitive drought and soil compaction. Fall planting Cladrastis lutea American Yellowwood (TF) sually a low branched tree with fragrant flowers. Eucommia ulmoides Hardy Rubber Tree Medium size tree with attractive summer foliage. Koelreuteria paniculata Golden Raintree Fragrant flowers and bladderlike fruit make this a good namental f residential areas. Ostrya virginiana American Hophnbeam (TF) Native tree with scaly bark. S Sensitive drought and compaction. Susceptible Po branching habit, scale insects may be a No serious disease pest known. Produces latex. Availability may by limited. No serious disease pest known except verticillium wilt. Fall planting Sensitive salt and urban conditions. A9-7

8 Phellodendron amurense Amur Cktree P.a. Macho Macho Amur Cktree Me upright than species. Fall planting Male variety of species that dose not produce fruit. Has spreading root system Prunus sargentii Sargent Cherry (TF) Reddish brown bark with obvious white lenticels. Hardy flowering tree but sht lived. Fall planting P.s. Columnar Columnar Sargent Cherry Same as species P. serrulata Kwanzan Kwanzan Cherry (TF) Flowering namental famous f the cherry blossom display in Washingn, DC. Robinia pseudoacacia Purple Robe Purple Robe Black Locust A good namental f difficult areas with fragrant flowers. Sassafras albidum Sassafras Native tree with fragrant leaves and bark. S S Sensitive pollution and several insects. Fall planting Availability may be Susceptible bers. May produce sucker sprouts. Few pest problems. Availability may be ph sensitive. *(TF) Indicates that tree fm should be specified when dering. A9-8

9 Key symbols used: Growth Habit Site Tolerance Seasonal Interest Columnar Requires full sun Fruit col/showy Vase Shaped Prefers shade Flower col/showy Conical Rounded Po, dry soil Moist soil Fall foliage/showy Spreading rban stresses S Salt C. LARGE TREES Mature ht. over 50ft. Minimum tree lawn 5ft; do not plant under wires. Species Growth Site Seasonal Caution/ Habit Tolerance Interest Comments Acer rubrum Autumn Flame Autumn Flame Red Maple Good tree f structure and fall col if planted on appropriate sites. A.r. Bowhall Bowhall Red Maple Good tree f limited space conditions. A. r. Ocber Gly Ocber Gly Red Maple One of the best Red Maple cultivars f fall col. Popular homeowner tree. A.r Red Sunset Red Sunset Red Maple Even me brilliant fall col than Ocber Gly. May be susceptible ph sensitive. Fall planting Shallow root system. May be susceptible ph sensitive. Fall planting Shallow root system. May be susceptible ph sensitive. Fall planting Shallow root system. Same as above plus susceptible wind driven road salt. A9-9

10 A. saccharum Sugar Maple Native tree that has been overplanted as a street tree. A.s. Bonfire Bonfire Sugar Maple Broad crown with good fall col. Sensitive road salt and very susceptible Does not do well on difficult sites. Sensitive road salt and Does not do well on difficult sites. A.s. Green Mountain Green Mountain Sugar Maple Me upright than species. Sensitive road salt and Does not do well on difficult sites. A.s Legacy Legacy Sugar Maple Rapid growing cultivar with dark green summer foliage. A. x freemani Autumn Blaze Autumn Blaze Hybrid Maple A cross between Red & Silver Maples with branching structure & col of Red Maple but rapid growth and adaptability of Silver Maple. May require regular pruning maintain clearance. Fall planting Not affected by limesne soils. Shallow root system. A.x freemani Celebration Celebration Hybrid Maple A cross between Red and Silver Maple with branching structure & col of Red Maple but rapid growth and adaptability of Silver Maple. Not affected by limesne soils. Susceptible Fall planting A.x freeemani Scarlet Sentinel Scarlet Sentinel Hybrid maple A cross between Red and Silver Maple with branching structure & col of Red Maple but rapid growth and adaptability of Silver Maple. Shallow root system. Susceptible verticillium wilt. Fall planting A9-10

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12 Celtis occidentalis Prairie Pride Prairie Pride Hackberry Rapid growing tree good f difficult sites. C. laevigata x o. Magnifica Magnifica Hackberry Rapid growing tree good f difficult sites. Cercidiphyllum japonicum (TF) Katsura Tree Scaly bark & red buds add interest year round. Cylus colurna Turkish Filbert A good urban tree where space is limited. Ginkgo biloba Autumn Gold Autumn Gold Ginkgo Good urban tree. G.b Lakeview Lakeview Ginkgo Narrow fm ideal f sites with limited space. G.b. Princen Sentry Princen Sentry Ginkgo Narrow fm ideal f sites with limited space. Gleditsia triacanthos Imperial Imperial Honeylocust Lower growing fm of Honeylocust. G. t. Ruby Lace Ruby Lace Honeylocust Red summer foliage. S S S S S S S May require regular pruning maintain clearance. Fall planting Not affected by limesne soils. May require regular pruning maintain clearance. Fall planting Not affected by limesne soils. Sometimes difficult establish after transplanting, but grows rapidly. Drought sensitive. Little fall col. Few insect disease problems. Few insect disease problems. Fruitless. Few insect disease problems. Susceptible webwm, bers and plant bugs. sually fruitless. Po fm and increased susceptibility insects and diseases. se sparingly. G.t. ShadeMaster Shademaster Honeylocust Susceptible webwm, bers and plant bugs. Reduced fruiting. A9-12

13 S G. t. Skyline Skyline Honeylocust Has a strong central leader and is me compact than other cultivars. Gymnocladus dioicus Kentucky Coffeetree Good urban tree requiring little care after establishment. Liquidambar styraciflua Sweetgum Beautiful, symmetrical plant when young, me spreading as it ages. L.s. Rotundiloba Rotundiloba Sweetgum Fruitless variety of species. Liriodendron tulipifera Tuliptree Yellow-poplar Referred as Redwood of the East because of the large size it can obtain. Magnolia acuminata Cucumbertree Good street tree f large spaces. S S Reduced fruiting. Less susceptible plant bugs & leaf hoppers than other cultivars. Pod fruit may be nuisance on female trees. Few disease insect problems. Slow establish. Fall planting Spiked, round fruit may cause litter Ice and snow damage common. Chlosis on high ph soils. Crown narrower than species. Fruitless Fall planting Fast growing tree. Fall planting Tolerates limesne soils. Availability may be limited. Susceptible verticillium wilt. Metasequoia glypstroboides Dawn Redwood nusual shape and fm f street tree. Nyssa sylvatica Blackgum One of the best trees f fall foliage S Po growth on alkaline soils. Availability may be Low branched tree that requires early pruning if used as street tree. Difficult transplant. Descending branches necessitates pruning f clearance, even on older trees. Affected by limesne soils. A9-13

14 Platanus acerifolia Bloodgood Bloodgood London Planetree Mottled bark attractive on older trees. Quercus acutissima Sawoth Oak Good oak f narrower tree lawns. S Attractive summer foliage Requires wide tree lawn. Tendency fm frost cracks but does better if planted in spring. Fruit & bark may cause litter Fruit may cause litter ph sensitive. Fall planting Q. alba White Oak Large growing tree me suited parks than tree lawns. Q. bicol Swamp White Oak Good street tree as replacement f White Oak. Q. imbricaria Shingle Oak Q. macrocarpa Bur Oak Large growing tree suitable f parks and wide tree lawns. S Small branches have cky, winged ridges Slow growing tree. Difficult transplant nmal size trees. Does poly on compacted soils. Fall planting Fruit may cause litter ph sensitive. Transplants better than white oak. Fall planting Dead leaves on younger trees don t drop until spring. Fall planting Slow recover from transplanting. Tolerates alkaline soil. Fall planting Q. rubra Red Oak Good native tree if adequate growing space. Q. Shumardii Shumard Oak Similar in leaf shape and other characteristics Red Oak. Sopha japonica Japanese Pagoda Tree Good medium large growing tree with unusual green coled bark on younger branches. S S S Fall planting Fruit may be a litter ph sensitive. Fall/winter pruning recommended where oak wilt present. Fruit may be litter Fall planting Does better on alkaline soils than Red Oak. Flowers and fruit may cause litter Twig blight may be a problem but doesn t affect tree health. A9-14

15 S.j. Regent Regent Pagoda Tree Similar species but smaller mature size. Taxodium distichum Bald Cypress Similar in shape dawn redwood but me sensitive high ph. S Flowers and fruit may cause litter Twig blight may be a problem but does not affect tree health. Requires early pruning if used as streettree. Tilia americana American Linden Large native tree suited large tree lawns and parks. Fragrant Susceptible verticillium wilt & Japanese beetles. Flowers attractive bees. Sprouts may be a T. a. Redmond Redmond American Linden Fast growing tree with me unifm shape than species. T. cdata Littleleaf Linden Popular downwn tree because of shape and adaptability. T. c. Glenlevin Glenlevin Littleleaf Linden Crown shape me closely resembles species than Greenspire Linden. T. c. Greenspire Greenspire Littleleaf Linden nifm crown shape. T. mensa Silver Linden nifm shaped tree with dark green leaves & silvery underside. S Fragrant Fragrant Fragrant Fragrant Fragrant Susceptible verticillium wilt & Japanese beetle. Flowers attractive bees. Sprouts may be a Adaptable ph & compaction but sensitive drought and salt. Aphid honeydew and associated sooty mold may be a Adaptable ph & compaction but sensitive drought and salt. Aphid honeydew and associated sooty mold may be a Adaptable ph & compaction but sensitive drought and salt. Aphid honeydew and associated sooty mold may be a Tolerates heat and drought. Aphid exudation and defoliation may be Basal sprouts may require pruning. A9-15

16 T. t. Sterling Sterling Silver Linden Fragrant Similar species but me resistant Japanese beetle feeding. Fall planting lmus americana Liberty Liberty American Elm Availability may be limited. Possible resistance Dutch Elm disease. Susceptible lmus americana Valley Fge Valley Fge American Elm S Availability may be limited. Possible resistance Dutch Elm disease. Susceptible lmus parvifolia Lacebark Elm Tough tree with attractive mottled bark. S Highly resistant Dutch elm disease.. p. Dynasty Dynasty Lacebark Elm Mature shape supposedly resembles American Elm. May be difficult establish. pright crown. Highly resistant Dutch elm disease.. p. Ohio Ohio Lacebark Elm Same shape as American Elm but smaller mature size. ph adaptable. Resistant Dutch elm disease.. wilsoniana Prospect Prospect Elm Smaller growing elm but still retains vase shape. Availability may be. Frontier Frontier Hybrid Elm Fast growing elm showing good fall col. Stem canker can kill individual branches. Resistant Dutch elm disease. A9-16

17 . Homestead Homestead Hybrid Elm Availability may be High resistance Dutch elm disease.. Pioneer Pioneer Elm Zelkova serrata Green Vase Green Vase Zelkova Fast growing substitute f American Elm. Z. s. Halka Halka Zelkova Large fast growing tree similar in shape American Elm. S S Availability may be High resistance Dutch elm disease. Fall planting Resistant Dutch elm disease. Fall planting Highly resistant Dutch elm disease. Availability may be a A9-17