Selected Street Tree List- City of Medford

Revised October 2013

Small Trees Narrow planting strips Less than 30' at maturity Powerline compatible Spatially confined growing space

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Selected Street Tree List- City of Medford

Latin Name

Common Name

Cultivar

Amelanchier x grandiflora

Hybrid serviceberry

Autumn brilliance, Robin Hill, Spring Flurry, Snowcloud

3

Y

25

25

V

N

M

N

M

N

Y

Y

Y

Needs good drainage, susceptible to rust and fireblight, prune basal suckers, select single trunk form

Acer grandidentatum

Bigtooth maple

Rocky Mtn. Glow, Schmidt

4

Y

25

25

R

N

Y

N

L

N

N

Y

Y

Slow to moderate growth, good arching branch structure, needs good drainage and trunk protection when young. Occasional leaf spot. Orange-red fall color

Acer griseum

Paperbark maple

4

M

30

15

O

Y

M

N

L

N

N

Y

N

Cercis canadensis

Eastern redbud

4

M

30

35

R

Y

Y

N

L

N

Y

N

Y

Chionanthus virginicus

Fringetree

4

Y

18

20

O

Y

Y

N

M

M

Y

N

Y

Cornus kousa

Korean dogwood

4

Y

30

30

R

N

N

N

M

N

Y

Y

Y

Lagerstroemia indica

Crapemyrtle

4

Y

20

12

V

Y

Y

N

M

M

Y

Y

Y

Maackia amurenseis

Amur maackia

4

Y

30

20

R

N

Y

N

L

N

Y

N

Y

Malus spp.

Flowering crabapple

4

Y

20

20

R

N

Y

N

M

Y

Y

N

Y

Parrotia persica

Persian ironwood/ parrotia

4

N

30

20

O

N

Y

N

N

N

N

Y

N

Prunus sargentii

Sargent cherry

4

M

30

25

R

N

N

N

M

N

Y

Y

Y

Midseason single pink flowers in small clusters. No fruit. Good orange-red fall color. Needs consistent water and good drainage. Select for insect and disease resistance. Must have trunk protection or afternoon shade; otherwise will scorch in southern OR.

Prunus serrula

Red bark cherry

4

M

30

25

O

N

N

N

L

N

N

N

Y

Glossy, red-brown bark is primary attribute. Thin, willow-like leaves that tend to hide midseason single white flowers. Needs good drainage, consistent water.

Styrax japonicus

Japanese snowbell

4

Y

25

20

R

Y

N

N

L

N

Y

M

Y

Bell-shaped white flowers in May; delicate appearance. Must have ample and consistent water. Trunk protection especially important. Fruit can be messy. Needs pruning to maintain ROW clearance.

4

M

30

25

R

N

Y

N

L

N

Y

N

Y

Fragrant blooms on new growth later spring. Needs pruning to attain street tree shape. Attractive glossy, peeling, red-brown bark.

Syringa reticulata Japanese tree lilac Shape: R- Round O- Oval P- Pyramidal C- Columnar V- Vase

Tuscarora, Natchez

Sargent, Columnaris, Accolade

Ivory Silk, Summer Snow

Trunk Protection/Shade: Y- Protect trunk N- N/A

Comments

Lovely, peeling, cinnamon colored bark; slow growing; scarlet fall color; tolerates some shade and a variety of soils, requires summer irrigation and pruning to establish central leader Magenta flowers in April before leaves; palm-sized heart shaped leaves; CAUTION: Susceptible to Verticillium. Cultivar 'Forest Pansy' for shade situations. Select single stemmed trees and train for upright growth. Transplant carefully. Urban tolerant. Fragrant clusters of flowers. 0.5" showy blue fruit that is rarely a problem. AKA Chinese Dogwood. Must have ample water in hot climates; resists anthracnose; long lasting flowers. Prune for upright street tree form. Good tree for dry areas. Very showy flowers; many different cultivars. Choose cvs. That are mildew and aphid resistant; the hybrid crosses btw. L. indica and L. fauriei have best mildew resistance. 'Tuscarora' bright coral pink blooms; 'Natchez' has pure white blooms. Many more cultivars. Legume; especially nice bark and late summer flowers; works on sites with low fertility. Erect yellow flower pannicles. Inedible seeds. Red buds, single white flowers in Apr/May; long bloom; small orange-red fruit; good disease resistance. Select varieties to be upright street trees suitable under power lines. Dolgo a larger variety requiring more space. Upright tree, can be multistemmed. Early bolloming small flowers with showy stamens. Excellent fall color. Beautiful exfoliating bark. Hardy and pest resistant, but needs sufficient drainage.

Maintenance: H- High M- Medium L- Low Powerline Compatible: Y- Yes M- Maybe N- No


Selected Street Tree List- City of Medford Acer tartaricum ssp. ginnala Chionanthus retusus Koelreuteria paniculata

Amur maple

Pattern Perfect, Flame, Red Wing

Often multi-stemmed; requires training into street tree form. Red-stemmed new growth in spring, fragrant flowers, showy fruit (red samaras), and brilliant fall color. Consider cvs: 'Flame' and 'Red Wing' for best fall color. Plant in full sun, provide consistent water to establish. Urban tolerant. Fragrant clusters of flowers. Select and train for higher branching structure.

5

Y

20

15

O

Y

Y

N

L

N

Y

Y

Y

Chinese Fringe Tree

5

Y

18

20

O

Y

Y

N

M

M

Y

N

Y

Golden raintree

5

Y

35

35

R

Y

Y

N

M

N

Y

Y

N

Yellow flowers in summer followed by interesting brown, papery fruits. Tolerant of urban conditions, susceptible to Verticillium .

5

Y

30

20

R

N

M

N

N

M

Y

N

N

Prune for development of upright street tree form. Beautiful, large flowers. Tolerant of a variety of soils.

Stellata, Merrill, Galaxy, Royal Star, Saucer, Yulan, Kobus, Alexandriana, Rustica Rubra

Magnolia spp.

Flowering magnolia

Ostrya virginiana

American hophornbeam

5

N

40

25

O

N

Y

N

N

N

N

Y

N

Handsome tree with zig-zag twigs. Pest resistant, and urban hardy. Strong wood and structure. Interesting hop-like seeds in the late summer.

Pistacia chinensis

Chinese pistache

5

M

45

35

R

Y

Y

N

M

M

Y

Y

N

Showy red flowers in spring; blue small fruit. Susceptible to Verticillium ; resists Armillaria . 'Keith Davey' attractive cv.

5

N

40

30

O

Y

Y

N

M

N

Y

Y

N

Do well in Rogue Valley. Species tree is taller than most cultivars. Select for shape, disease resistance, and flowers. Early, single white flowers with glossy green leaves. Purple red fall color. Avoid Autumn Blaze and Bradford cvs.

Pyrus calleryana

Callery pear

Redspire, Aristocrat, Chanticleer, Cleveland Select, Fauriei

Not Approved as Street Trees: Acer macrophyllum- Bigleaf maple Acer negundo- Box elder Aesculus spp.- Horsechestnut Ailanthus altissima- Tree of Heaven Alnus spp.- Alder Catalpa speciosa- Catalpa Cornus mas- Cornelian dogwood Crataegus spp.- Hawthorne

Shape: R- Round O- Oval P- Pyramidal C- Columnar V- Vase

Laburnum x watereri- Goldenchain tree Morus spp.- Mulberry Juglans spp.- Walnut Maclura pomifera- Osage orange Populus spp.- Poplar, Aspen, Cottonwood Salix spp.- Willows Ulmus pumila- Siberian elm Conifers Fruiting trees (Plum, pear, mulberry)




Medium-sized Trees 6' to 7' wide planting strips 25' to 60' tall at maturity Latin Name Acer truncatum

Common Name

Cultivar

Shantung maple Norwegian Sunset



6

Y

25

25

R

Y

Y

N

L

N

N

Y

Comments

Y

aka. "painted maple"; glossy star-shaped foliage that holds up in heat. Dense canopy. Needs good drainage.

Betula utilis jaquemontii

Jacquemontii/ Himilayan whitebarked birch

Jacquemontii, White Satin

6

N

40

30

O

Y

Y

N

M

N

N

N

N

Lovely white bark when young that seems to reflect strong sun. CAUTION: birches tend to get aphids and are brittle, so are not recommended as street trees. Bronze birch borers may also become a problem. Do not plant in close clusters of 3-4 stems. Gentle branch thinning can reduce aphid problem.

Betula nigra

River birch

Dura-Heat, Heritage

6

N

50

35

O

Y

Y

N

H

Y

N

N

N

Red birch; exceptional white bark; can be surface rooting. Drought tolerant.

Carpinus betulus

European hornbeam

Fastigiata, Franz Fontaine

6

N

50

35

O

Y

Y

N

L

N

N

N

N

Hardy tear-shaped tree. Fastigiata is tight upright form. Needs consistent water and some bark protection for establishment.

Carpinus caroliniana

American hornbeam

6

M

35

25

O

Y

N

N

L

N

N

N

Y

Carpinus japonica

Japanese hornbeam

6

Y

20

25

R

Y

N

N

L

N

N

N

N

Celtis laevigata

Sugar hackberry

6

N

50

40

V

Y

Y

N

L

N

N

N

N

6

N

60

60

R

Y

Y

N

L

N

N

N

N

All Seasons, Magnifica, Prairie Pride

Tough, "well-behaved" tree, but does not have spectacular flowers. Yellow fall color. Much slower growth. Does not do well in "desert parking lots"; needs consistent water for establishment. Small hardy tree, well suited for urban conditions and under power lines. Easy to transplant. Select trees with higher branching (5-6'). Exceptionally tough; easy on infrastructure; late to leaf-out. Resists Verticillium and Armillaria. Tough, interesting, corky bark.

Celtis occidentalis

Hackberry

Cercidiphyllum japonicum

Katsura

6

N

50

30

O

Y

N

N

L

N

N

Y

Y

Cladrastis lutea

Yellowwood

6

N

40

45

R

N

Y

N

M

M

Y

Y

Y

6

N

50

40

R

Y

Y

N

M

N

N

N

Y

Fast growing; easy to transplant; tolerant of urban stress; Needs pruning to reduce poor branching habits. Summit and Patmore have improved structure. Symmetrical form.

Fraxinus pennsylvanica

Marshall Seedless,

Urbanite/Green Patmore, Summit, ash Urbanite

Exceptionally tough; easy on infrastructure; late to leaf-out. Resist Armillaria. Needs irrigation and trunk protection from sun. Select single stemmed trees. Beautiful delicate structure. Red Fox for a smaller variety. Pinnately compound leaves, especially nice bark and white, wisteria-like flower pannicles in spring. Legume, adapted to poor soil. Protect trunk until well-established. Prune for street and sidewalk clearance.

Fraxinus quadrangulata

Blue ash

6

M

40

40

O

Y

M

N

M

M

N

N

N

Purple fall foliage; square stems; semi drought tolerant.

Halesia monticola

Mountain silverbell

6

N

35

25

O

M

N

N

L

N

Y

Y

Y

White pendulous flower panicles, oval tapered leaves. Contrasting colored twigs.

Nyssa sylvatica

Tupelo

6

N

45

30

P

Y

Y

N

L

M

N

Y

Y

aka. Blackgum, sourgum, Pepperidge tree. 'Red Rage' has brilliant yellow-scarlet fall color, resists leaf spot and has showy corky bark. Adaptable in urban conditions and poor soils.

Prunus serrulata 'var.'

Flowering cherry

6

N

35

20

R

N

Y

N

M

N

Y

Y

Y

aka Japanese cherry. Needs well drained soil or can be hard on infrastructure. Select trees for desired shape and flowers, as well as disease and insect resistance. Avoid pruning except when necessary to remove water sprouts or basal suckers.


Mt Fuji, Kwanzan, Ichiyo, Chirifugan




Selected Street Tree List- City of Medford Prunus x yedoensis

Hybrid flowering Yoshino, Akebono cherry

6

N

40

30

R

N

Y

N

M

N

Y

N

Y

Princeton Upright, Regent,

6

N

50

35

O

N

Y

N

M

N

Y

N

Y

Horizontal open branches; early single light pink to nearly white. This kind is planted in Washington D.C. tidal basin. Most disease free cherry in Pacific Northwest. Needs good drainage, consistent water. Select cultivars for shape and disease resistance. Legume. Beautiful branch structure and flowers on drooping pannicles. Showy orange fruit in mid-summer. Attracts wildlife. Needs trunk protection from sun.

Sophora japonica 'var.'

Scholartree

Sorbus aucuparia

European mountain ash

6

N

35

25

O

N

M

N

L

Y

Y

Y

Y

Fruit may be messy and persist through the winter. Late summer clusters of flowers. Tolerant of wind and heat, but requires trunk protection from the sun.

Tilia americana

American linden

6

N

45

30

O

N

M

N

L

N

Y

Y

N

Choose variety for shape and size. Hybrids also available. Yellow fall color. Good substitute for ash.

Tilia cordata

Littleleaf linden

6

N

55

40

O

N

M

N

L

N

Y

Y

N

Fragrant yellow flowers in June, tolerant of urban conditions. Prune to establish strong central leader and remove basal suckers. May be susceptible to aphids.

Umbellularia californica

Oregon myrtle

7

N

60

45

R

N

Y

Y

L

N

N

N

N

Evergreen leaves with spicy fragrance, tolerant of urban conditions and seasonal flooding. Spreading canopy and good resistance to pests and disease. Requires water to establish.

Trees for Beneath Power Lines Species Amelanchier x grandiflora Acer grandidentatum Acer griseum Acer truncatum Carpinus japonica Cercis canadensis Chionanthus virginicus Cornus kousa Lagerstroemia indica Maackia amurenseis Malus spp. Parrotia persica Prunus sargentii Prunus serrula Styrax japonicus Syringa reticulata Acer tartaricum ssp. ginnala Chionanthus retusus Koelreuteria paniculata Magnolia spp. Zeklova serrata


DeGroot, Glenleven

Common Name

Varieties

Height

Width

Hybrid serviceberry Bigtooth maple Paperbark maple Shantung maple Japanese hornbeam Eastern redbud Fringetree Korean dogwood Crapemyrtle Amur maackia Flowering crabapple Persian ironwood/ parrotia Sargent cherry Red bark cherry Japanese snowbell Japanese tree lilac Amur maple Chinese Fringe Tree Golden raintree Flowering magnolia Japanese Zelkova

A utumn brilliance, Ro bin Hill, Spring Flurry, Sno wclo ud

25 25 30 25 20 30 18 30 20 30 20 30 30 30 25 30 20 18 35 30 24

25 25 15 25 25 35 20 30 12 20 20 20 25 25 20 25 15 20 35 20 36

Ro cky M tn. Glo w, Schmidt No rwegian Sunset

Tuscaro ra, Natchez

Sargent, Co lumnaris, A cco lade

Ivo ry Silk, Summer Sno w P attern P erfect, Flame, Red Wing

Stellata, M errill, Galaxy, Ro yal Star, Saucer, Yulan, Ko bus, A lexandriana, Rustica Rubra City Sprite, Wireless




Large Trees Minimum 8' wide planting strips 50' to 80' tall at maturity Not suitable for limited growing space Latin Name

Common Name

Corylus colurna

Turkish filbert

8

N

50

30

P

Y

Y

N

N

N

N

Y

N

Handsome tree with dark green foliage. Adaptable to variety of soils and pH.

Davidia involucrata

Dove tree

8

N

50

40

R

N

N

N

N

N

Y

Y

N

Exceptionally showy and unusual flower displey. Needs summer irrigation.

Eucommia ulmoides

Hardy rubber tree

8

N

50

45

R

Y

Y

N

N

N

N

N

N

Glossy, dark green leaves. Hardy, adaptable to urban conditions. Disease free.

8

N

50

40

O

N

M

N

N

N

N

Y

N

Stately trees with interesting foliage and fall color. Purple varieties for contrasting color in growing season. Fastigiate forms for narrow spots and along buildings. Ensure Beech Bark Disease resistance.

8

N

50

40

O

N

M

N

N

N

N

Y

N

Stately tree with good branch structure and silver-grey bark. Glossy green foliage and bronze fall color. Ensure Beech Bark Disease resistance.

8

N

60

50

R

Y

M

N

L

N

N

Y

N

aka. Maidenhair tree; MALE CLONES ONLY. Slow growing, brilliant yellow fall color, fan shaped leaves; very urban tolerant. Female trees have foul smelling fruit.

Fagus sylvatica

European Beech

Fagus grandifolia

American beech

Cultivar



Tricolor, Fernleaf, Green, Fastigate, Lacinata, Dawyck Purple, Rivers Purple, Purple Fountain

Comments

Ginkgo biloba

Ginkgo

Ginkgo, Autumn Gold, Princeton Sentry, Magyar, Fairmount

Gymnocladus dioicus 'var.'

Kentucky coffeetree

Kentucky, Espresso

8

N

50

35

O

N

N

N

M

N

N

N

Y

Male: suckers easily; seedless, legume, pinnate compound leaves, white midseason flowers. Lovely bark in winter.

Magnolia grandiflora

Southern magnolia

Edith Bogue, Victoria, Magestic Beauty, Samuel Sommer

8

N

80

50

P

Y

N

N

M

N

Y

N

N

Underused in southern OR. Broadleaf evergreen with large white flowers in spring. Can be surface rooting. Victoria is a small tree to 20'. Prune for single central leader.

Oxydendron arboreum

Sorrel tree/ sourwood

8

Y

25

15

O

N

N

N

N

N

Y

Y

N

Narrow, graceful tree with pendulous lily-of-the-valley like flowers in mid-summer. Can be shallow rooted. Brilliant red fall color. Needs summer irrigation. Powerline compatible.

Phellodendron amurense

Amur corktree

8

N

45

45

R

Y

Y

N

M

N

N

N

N

Fast growing, upright, spreading. Hardy, seedless tree with good branching habit and pest resistance.

Quercus acutissima

Sawtooth oak

8

N

50

45

O

M

Y

N

L

N

N

N

N

Rounded, broad, pyramidal shape. Trunk flares out at the base lifting sidewalks and curbing if planted in tree lawns less than 8' wide or too close to walks. Needs good drainage. 1" acorns, attractive to squirrels. Smaller oak, skinny, chestnut like leaves, very urban tolerant.

Tilia tomentosa

Silver linden

8

N

60

40

O

Y

Y

N

L

N

Y

Y

N

Resists drought and heat better than other lindens. Leaves are gleaming dark on upper surface and white beneath giving spectacular effect in the breeze.


His Magesty




Selected Street Tree List- City of Medford Princeton,

Ulmus americana

American/ Hybrid Triumph, Pioneer, Accolade, Valley elm

8

N

60

50

V

Y

Y

N

L

N

N

Y

N

8

N

60

55

O

Y

Y

N

L

N

N

Y

Y

8

M

60

45

V

Y

M

N

M

N

N

Y

Y

9

N

40

40

O

Y

Y

N

Y

N

N

Y

N

Forge

Ulmus parvifolia

Chinese elm Green Vase,

Zelkova serrata

Japanese zelkova Halka, City Sprite, Wireless Halka, Imperial, Shademaster, Skyline, Sunburst, Trueshade

Choose varieties resistant to Dutch Elm Disease and Phloem Necrosis. Classic street tree with spreading vase shape at maturity. Many varieties available for different size spaces. Yellow fall color. aka Lacebark elm; confused with U. pumila , but a much better tree. Resists Dutch Elm Disease and Armillaria . Protect bark when young. May be attractive to flickers (damaging birds). Related to elms, but resistant to Dutch Elm Disease. Grows moderately to 60'. Lovely as a street tree when space allows. City Sprite and Wireless for under powerlines. Can be pruned up and over signage. Needs consistent water to establish, but otherwise great for southern OR.

Gleditsia tricanthos

Thornless honeylocust

Quercus bicolor

Swamp white oak

9

N

80

80

R

Y

Y

N

L

N

N

N

N

Quercus coccinea

Scarlet oak

9

N

75

50

O

N

Y

N

L

N

N

Y

N

Quercus garryana

Oregon white oak

9

N

70

60

R

N

Y

Y

M

Y

N

N

N

Quercus kelloggii

California black oak

9

N

80

80

R

N

Y

Y

L

Y

N

N

N

Quercus lobata

California valley oak

9

N

70

70

O

Y

Y

N

L

N

N

N

N

Quercus macrocarpa

Bur oak

9

N

90

90

R

Y

Y

N

L

N

N

N

N

Difficult to transplant successfully, but once established tolerant of many stressful conditions. CAUTION: susceptible to mistletoe, Armillaria.

Quercus phellos

Willow oak

9

N

75

60

O

Y

Y

N

M

N

N

Y

N

Narrow leaves- does not look like a "typical" oak, but eventually will produce acorns. Handsome, fast growing, unusual tree. CAUTION: susceptible to mistletoe, Armillaria .

Quercus shumardii

Shumard oak

9

N

50

40

O

Y

Y

N

N

N

N

Y

N

Thrives in moist, acid bottomland soils where poor drainage creates problems for other trees.

Quercus suber

Cork oak

9

N

70

70

R

N

Y

N

L

N

N

N

N

Under-utilized evergreen oak. Fast grower in southern OR. Good for "desert"

Quercus robur

English oak

9

N

70

60

R

N

Y

N

L

N

N

N

N

Large rounded tree with sturdy structure. Adaptable to different soil and climate conditions. Hybrids available for different shapes and growing spaces.

Acer platanoides

Crimson King Norway maple

Crimson King

10

N

45

40

O

Y

Y

N

M

N

N

Y

Y

Heat and drought tolerant, adapted to poor soil, maroon leaf color, may self-seed, can be surface rooting and attract aphids

Norway maple

Columnare, Columnarbroad (Parkway), Deborah, Emerald Queen

10

N

50

40

O

Y

Y

N

M

N

N

Y

Y

Heat and drought tolerant, adapted to poor soil, yellow fall color, may self-seed, can be surface rooting and attract aphids, tolerant of Verticillium

Acer platanoides



Vigorous growth, with intersesting bark and bright foliage. Yellow new growth in spring. Strong branching, but requires pruning for deadwood and ROW clearance.

May produce 1" acorns sporadically when mature. Scalloped leaves dark green above, silvery white beneath. Needs good drainage. CAUTION: susceptible to Armillaria , mistletoe. Deeply cut leaves turn bright scarlet in fall. Availability is limited. Needs good drainage. CAUTION: susceptible to mistletoe, Armillaria . aka Garry oak. Native to PNW. CAUTION: susceptible to mistletoe, Armillaria . Needs good drainage. Difficult to transplant successfully. Eugene is northern end of natural range. New leaves are pinkish. Needs good drainage. CAUTION: susceptible to mistletoe (less than OR white oak), Armillaria . aka CA white oak. Fast growing, eventually a giant shade tree; good alternative to cottonwood. Needs good drainage.





