CITY OF HOOD RIVER RECOMMENDED STREET/SHADE TREE LIST

 

The selected trees where chosen with the listed suitability criteria in mind. The indicated cultivars cannot be easily substituted with another cultivar within the same species, as properties such as disease resistance or plant habitat vary widely between cultivars.   When choosing the proper street tree(s) for your project, keep in mind that continuity and repetition of a theme along a street or in a neighborhood are important design criteria. Selecting one to three different trees, depending on the size of the project, will result in a stronger and more unified landscape or streetscape, as opposed to planting too many different species or cultivars. When selecting trees, exposure (sun/shade), intensity of wind, soil type, drainage, width of street, and maintaining traffic visibility are important factors to consider.

 

MEDIUM TO LARGE SIZED TREES (SUN):                               

GENUS

SPECIES CULTIVARS

COMMON NAME

HEIGHT

SPREAD

FORM

RECOM

CAL. SIZE

Acer x truncatum

'Warrenred'

Pacific Sunset Maple

30 ft.

25 ft.

oval crown, upright spreading

2 in

Excellent orange-red fall color, glossy foliage. Fine-textured branch structure. Great smaller shade tree.

Acer

rubrum 'Armstrong'

Armstrong Maple

50 ft.

15 ft.

upright narrow

2 in. cal

Fast-growing. Light green foliage, yellow-orange fall color. Attractive, silvery-gray bark. Will tolerate higher soil moisture.

Acer

rubrum 'Autumn Flame'

Autumn Flame Maple

35 ft.

35 ft.

rounded w/ spreading branches

2 in. cal

Very early brilliant fall color. Extremely cold tolerant. Good for higher elevations. 

Acer

rubrum 'Bowhall'

Bowhall Red Maple

40 ft.

12-15 ft. 

pyramidal-columnar, very narrow 

2 in.

Very symmetrical, good yellow-orange to red fall color. Excellent columnar tree.  

Acer

rubrum 'Franksred'

Red Sunset Maple

45-50 ft.

35-40 ft.

pyramidal to oval-rounded

2 in. cal

Hardy and reliable. Excellent red fall color. For wider streets or driveways only.   

Acer

rubrum 'Morgan'

Morgan Maple 

45 ft.

40 ft.

broadly oval

2 in. cal

Fast growing, very hardy. Reliable brilliant red fall color. For wide streets or driveways only.  

Acer

rubrum 'October Glory'   

October Glory Maple

40 ft.

35 ft.

broadly oval to rounded

2 in. cal

Deep red fall color in late fall. Tolerates hot summer temperatures well.  

Carpinus

betulus 'Fastigiata'   

Fastigiate European Hornbeam   

40 ft.   

20 ft.   

oval vase shape w/ fan-ribbed branches     

2 in. cal

Fine landscape tree, also suitable as a tall hedge or screen. May be used in groupings. Dark green foliage, yellow fall color. Disease, heat and wind-resistant.


GENUS

SPECIES CULTIVARS

COMMON NAME

HEIGHT

SPREAD

FORM

RECOM

CAL. SIZE

Carpinus

betulus 'Frans Fontaine'   

 Frans Fontaine Hornbeam   

30-35 ft.

15 ft.

narrow columnar     

2 in. cal

Wonderful plant for restricted growing areas. Dark green foliage, yellow fall color. Narrowest form of all Hornbeams. Disease, heat and wind-resistant.   

Koelreuteria

paniculata

Goldenrain Tree    

30-35 ft.  

25-35 ft

rounded outline     

1.75 in. cal

Best as small shade tree or patio tree, not large-scale street tree. Beautiful flowering tree with excellent, showy yellow blossoms in summer. Very adaptable and disease resistant. Available as tree form or multi-stem.   

Liriodendron

 tulipifera 'Fastigiatum'   

Columnar Tulip Tree   

50 ft.   

15-20 ft

tightly fastigiate (upright)     

2 in. cal

A fast-growing tree which remains slender-growing at maturity. Beautiful large foliage. Yellow flowers w/ orange center in early summer. Bright yellow fall color.                                                      

Prunus

 padus 'Drietree'   

Merlot Bird Cherry   

25-30 ft

18-20 ft

oval to rounded     

2 in. cal

'Summerglow' may be more readily available. Adaptable and very hardy. Small tree which does not sucker. Green leaves appear early, maturing to excellent red-purple in summer. Purple-red fall color. Fragrant white flowers, fruit harvested by birds. Also good for naturalistic settings.                           

Prunus

sargentii 'Columnaris'   

Columnar Sargent Cherry    

30 ft.   

12-15 ft

upright columnar     

2 in. cal

One of the best & most beautiful Flowering Cherries. Deep pink flowers in clusters. Excellent orange-red fall color. Mahogany polished bark. Displays year-round interest.                                                     

Prunus

'Spire' (x hillieri 'Spire')   

Spire Cherry   

30 ft.   

10 ft.   

narrow upright     

2 in. cal

Excellent narrow upright tree. Fills in at an early age. Single pink flowers, dark green foliage. Bright orange-red fall color.                           


Pyrus

calleryana 'Glen's Form'    

'Chanticleer' Ornamental Pear ('Cleveland Select')   

35 ft.   

15 ft.   

upright, narrow pyramidal

2 in. cal    

Glossy green foliage turning reddish in fall. White flowers in clusters appear before the foliage. Resistant to fireblight. Sturdy, break-resistant branch structure.                                 

Pyrus

calleryana 'Redspire'   

Redspire Ornamental Pear    

35 ft.   

20-25 ft

pyramidal, symmetrical     

2 in. cal    

Abundant white flowers, glossy medium green foliage with yellow to red fall color. Not as fireblight-resistant as 'Chanticleer'.   

Sophora

japonica 'Regent'   

Regent Japanese Pagodatree   

50 ft.   

45 ft   

upright spreading, oval-rounded crown     

2 in. cal    

Fast growing. Showy white flowers in mid summer. Lustrous dark green foliage, yellow fall color. Disease-resistant tree which is also heat and drought tolerant.

Tilia

cordata 'Chancole'   

Chancellor Linden   

35 ft.   

20 ft.   

upright, tightly pyramidal.     

2 in. cal    

Dark green foliage on a tight, symmetrical tree. Fast-growing. Fragrant creamy-white flowers in summer. Great street tree. 


 

GENUS

SPECIES CULTIVARS

COMMON NAME

HEIGHT

SPREAD

FORM

RECOM

CAL. SIZE


Tilia

cordata 'Corzam'   

Corinthian Linden   

45 ft.   

15 ft.   

compact, pyramidal     

2 in. cal   

Narrowest of the Linden cultivars. Uniform, formal shape & branching pattern. Lustrous, deep green foliage with a fine texture. Creamy white flowers.      

Tilia

cordata 'Greenspire'   

Littleleaf Linden   

40 ft.   

30 ft   

pyramidal-rounded     

2 in. cal    

 Symmetrical form with uniform branch structure. Very reliable cultivar & a great street tree. Dark green foliage, creamy-yellow, fragrant flowers. Yellow fall color.   

Zelkova

serrata 'Green Vase'   

Green Vase Zelkova   

50 ft.   

40 ft.   

Vase-shaped, upright arching branches.     

2 in. cal    

A highly recommended, fast-growing tree. Finely-textured foliage produces dappled shade. Resembles American Elm, with more delicate foliage. Disease resistant.

Zelkova

serrata 'Musashino'   

Musashino Zelkova   

45 ft.   

15-20 ft

narrow, upright vase shape     

2 in. cal    

 New cultivar. Ideal for narrow street use. Medium green, finely-textured foliage. Yellow fall color. Resembles American Elm, but with excellent disease resistance.                                                     

Zelkova

serrata 'Schmitlow'   

Wireless Zelkova   

25 ft.    

35 ft.   

 broadly spreading vase shape     

2 in. cal    

 New cultivar. Great for planting under utility lines on account of its low and broadly spreading shape. Medium green foliage with good red fall color.                                                      

Zelkova

serrata 'Village Green'   

Village Green Zelkova   

40 ft.   

40 ft.   

vase-shaped, rounded     

2 in. cal    

Fast-growing. Clean, dark green foliage. Rusty red fall color. A hardy, disease-resistant tree which resembles American Elm. All Zelkova are very heat-tolerant.   

SMALLER TREES (SUN):                           

GENUS

SPECIES CULTIVARS

COMMON NAME

HEIGHT

SPREAD

FORM

RECOM. CAL. SIZE

Acer

ginnal 'Flame'   

Amur Maple (Tree Form)   

20 ft.   

20-25 ft

rounded     

2 in.

Use tree form. Hardy & adaptable. Tolerates part shade, suitable for large containers. Orange-red fall color.                                                     

Acer

griseum

Paperbark Maple   

25 ft.   

20 ft.   

upright spreading, rounded crown     

1.5 in

A most beautiful small tree. Slow-growing. Attractive, cinnamon-colored peeling bark. Reliable red fall color.                                                     

Amelanchier

x grandiflora 'Autumn Brilliance'   

Apple Serviceberry    

20 ft.   

15-18 ft. 

upright, rounded crown     

1.75 in. cal

 White flowers in spring, edible fruit. Excellent, orange-red fall color. Attractive bark. Slow-growing.  Disease-resistant. Sun/part shade. Also for naturalistic settings.       

GENUS

SPECIES CULTIVARS

COMMON NAME

HEIGHT

SPREAD

FORM

RECOM

CAL. SIZE

Amelanchier

laevis 'Snowcloud'   

Snowcloud Serviceberry   

20-25 ft.

15 ft.   

narrow upright oval (tree form)     

1.75 in. cal    

Graceful, airy tree with large white spring flowers. Edible, sweet purplish-black fruit. Blue-green summer foliage, orange fall color. Also for naturalistic settings.  

Cercis

canadensis     

Eastern Redbud    

25 ft.    

25-30 ft.

Spreading branches, rounded, flat-topped crown     

2 in. cal    

Showy, reddish -purple spring flowers. Large, attractive, heart-shaped foliage. Yellow fall color. Heat and wind-tolerant, disease-resistant.                         


Cercis

 chinensis 'Avondale'   

Avondale Chinese Redbud    

10-12 ft.

10-12 ft.

upright rounded     

1.5 in. cal   

Glossy, large heart-shaped foliage. Rosy-red flowers appear before the foliage. A choice small tree which also thrives in part shade. Slow-growing. Hardy to Zone 5. 

Malus 

 'Centzam'   

Centurion Crabapple   

20 ft.   

15 ft.   

narrow upright     

1.75 in

Rosy-red flowers, purplish foliage turning bronze green in summer. Good to excellent disease resistance.    


Malus

 'JFS-KW5'   

'Royal Raindrops'   

20 ft.   

15 ft.   

upright spreading     

1.75 in

Excellent new cultivar. Bright pinkish red flowers, purple foliage. Orange red fall color. Persistent small red fruit. Excellent disease resistance.   

Malus

 'Prariefire'   

Prairiefire Crabapple    

20-25 ft.

20 ft.   

upright, rounded with open habit     

1.75 in. cal

Bright, rose-red flowers, purplish foliage. Persistent, small red fruit. Superb disease resistance.     

Malus

'Sentinel'    

Sentinel Crabapple   

20 ft.   

12 ft.   

narrow upright     

1.75 in. cal

Dark green, glossy foliage. Red buds opening to pale pink flowers. Bright red, persistent fruit. Good disease resistance.  

Malus

'Sutyzam'   

Sugar Tyme Crabapple   

18 ft.   

15 ft.   

upright spreading, oval     

1.75 in

Fragrant white flowers in spring. Persistent small red fruit makes for great fall and winter display. Good to excellent disease resistance.  

Malus 

x zumi 'Calocarpa'

Zumi Calocarpa Crabapple   

20 ft.   

25 ft.   

Rounded, gracefully spreading     

1.75 in. cal

Red buds opening to white flowers. Small, persistent red fruit. Good to excellent disease resistance.

Magnolia

x loebneri 'Merrill'   

Merrill Magnolia  ('Dr. Merrill')   

25 ft.   

25-30 ft.   

rounded -oval, low-branching.     

1.75 in. cal

Abundant, large, fragrant white flowers in spring. Hardy and reliable, starts blooming at an early age. Excellent disease resistance.   


Parrotia

persica   

Persian Parrotia   

25-30 ft.  

25-30 ft. 

oval-rounded, upright     

1.75 in. cal

Available as multi-stemmed shrub or small tree. Excellent orange-red fall color and interesting bark. Very adaptable.   

Parrotia

persica 'Vanessa'   

Columnar Persian Parrotia   

20-30 ft.  

15 ft.   

upright/columnar     

1.75 in. cal

A narrow, columnar form of the species. Has the same great characteristics, but fits a tighter spot.                            

Prunus  

yedoensis 'Akebono'   

Akebono Flowering Cherry    

25 ft.    

25 ft.   

upright spreading, rounded crown     

1.75 in. cal

 Soft pink flowers in spring. A beautiful, smaller Cherry with medium green foliage and yellow fall color. Hardy and quite disease resistant. Moderate wind tolerance.   

SMALLER TREES FOR PARTIAL SHADE   (Use only in protected locations, also on North side of buildings or under large shade trees. All need consistent moisture) :                       

GENUS

SPECIES CULTIVARS

COMMON NAME

HEIGHT

SPREAD

FORM

RECOM

CAL. SIZE

Acer

japonicum 'Aconitifolium'   

Fullmoon Maple   

10 -12 ft,

12-15 ft.  

spreading, bushy habit     

1.5 in. cal

Beautiful large, dissected foliage with magnificent crimson red fall color. A slow-growing , choice shrubby tree.    

Acer

palmatum 'Oshio Beni'   

Oshio Beni Japanese Maple    

15-20 ft   

20 ft.   

spreading, upright     

1.5 in. cal    

Reddish foliage with rich scarlet fall color. Hardy and reliable.                                                       

Acer

palmatum 'Sherwood Flame'   

Sherwood Flame Japanese Maple   

12-15 ft.   

15-18 ft

spreading, broadly rounded     

1.5 in. cal    

Excellent burgundy red foliage with bright red fall color. Very adaptable. Beautiful small tree.    

Cornus

kousa 'Radiant Rose'    

Radiant Rose Kousa Dogwood   

25 ft.   

25 ft.   

vase-shaped     

1.75 in. cal

Reddish-pink flowers, great plant structure. Green leaves w/ red tint. Rich red fall color. Very hardy and disease resistant. 'Satomi'  is another good choice.   

Cornus

 kousa 'Snowflake'   

Snowflake Kousa Dogwood    

25 ft.   

20 ft.   

vase-shaped to rounded.     

1.5 in. cal   

A small tree with a bushy habit. Large white flowers, red fruit. 'Milky Way' and 'Celestial' are other good cultivars.   

                                               


CRITERIA AND INSTRUCTIONS FOR RECOMMENDED STREET TREES

Suitability Criteria for Trees Chosen for the Street Tree List:

·         All hardy to at least USDA Zone 5-6 (Hood River). Trees for full sun must be wind and heat-resistant.

·         Suitable as street trees - smaller trees for narrower streets, medium to large ones for wider ones.

·         High clearance (no low branching) for street tree use. Gradually limb up trees as they mature.

·         Dwarf or low selections under power lines and where preferable.

·         Resistant to breakage from wind and ice.

·         Uniform branch structure preferable, good plant habit.

·         Non-invasive roots, don't crack pavement.

·         No messy fruit, clean leaf drop if possible.

·         No thorns, minimal suckering.

·         Disease and pest-resistant (will vary), with special attention to Fireblight & Scab resistance. Trees should not require regular spraying.

·         Easy availability (some newer cultivars may be harder to find).

·         Should not create high pollen count (allergies).

 

Other Criteria:

·         Under power lines trees should grow to less than 25-30 ft. in mature height.

·         Height and spread given refer to mature size of trees. Trees for street use should be spaced apart slightly less than their mature width.

·         Medium to large trees are suitable for wide streets, driveways and shade trees for parks/large lawns.  Keep them away from buildings or other objects they may grow too close to.

·         With selected fruit-producing trees, such as Amelanchier or Prunus padus, fruit is minimal, persistent and/or eaten by birds.

·         Close to commercial orchards, select only trees resistant to Fireblight, Scab etc.

·         Close to decks or patios, select trees which do not drop excessive fruit or seeds.

Planting Instructions: 

1.      Select healthy trees with a straight trunk and uniform branching.

2.      For street trees, gradually remove all branches below 6 feet high (may take several years). 

3.      Make sure root balls are very moist prior to planting.

4.      Dig hole the same depth as the container and twice as wide as the root ball.

5.      Do not improve the backfill soil around the tree; the soil in the complete planting strip should be amended.

6.      If trees are rootbound, roughen up the roots of containerized trees carefully.

7.      On balled-and burlapped trees, untie the burlap once the tree is situated in the hole at the correct height. To protect the rootball, do not remove burlap but fold it completely down.  The burlap will rot quickly in the soil. 

8.      Prune any broken or damaged branches.

9.      Only stake trees in very windy areas or if rootball is small compared to the tree crown.

10.  Use three stakes per tree. Do not over-tighten ties; allow tree to bend slightly in the wind.

11.  Remove stakes one year after planting.

12.  Create a temporary basin around the tree trunks and soak trees manually several times.

13.  Irrigation (preferably drip irrigation) is usually a necessity, especially the first two years after planting.

14.  Deep soaking in the summer once or twice a week is preferable to shallow surface irrigation, unless temperatures are extremely high.

15. Fertilize trees with slow-release fertilizer, preferably organic, the first three years after planting.