Intermediate Trees Approved by the City of Monmouth
Akebono Flowering (Cherry Prunus yedoensis)
Mature Height: 25′ Canopy Spread: 25′
Minimum Park Strip Width: 8ft
Overhead Power Lines: Yes
Details: Upright spreading with bright green foliage. Delicate pink flowers in spring. Yellowish fall color.
American Hornbeam (Carpinus caroliniana)
Mature Height: 20-30′ Canopy Spread: 20-30′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Fall color leaves, spread wide
Amur Maackia (Maackia amurensis)
Mature Height: 12-30′ Canopy Spread: 12-30′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: White summer flowers, fragrant, peeling bark
Autumn Blaze Pear (Pyrus calleryana)
Mature Height: 30′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes
Details: Rounded shape with spreading branches. Foliage emerges with a red tint and matures to glossy green.
Canada Red Chokecherry (Prunus virginiana ‘Canada red’)
Mature Height: 25′ Canopy Spread: 20′
Minimum Park Strip Width: 8ft
Overhead Power Lines: Yes
Details: Upright round habit. Foliage green in spring, to dark purple in summer, to reddish in autumn. Small white flowers in long clusters. Red-purple fruit.
Chanticleer Pear (Pyrus calleryana ‘Chanticleer’)
Mature Height: 20-35′ Canopy Spread: 20′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Flowers heavily in spring, turns to reddish/purple in fall.
Chokecherry (Prunus virginiana)
Mature Height: 20-30′ Canopy Spread: 20′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Small white flowers. The species is native to Oregon.
Cascara (Rhamnus Purshiana)
Mature Height: 30′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Prefers shady, moist conditions. Yellow leaves in fall. Small, black berries attract birds. The species is an Oregon native understory tree.
Chancellor linden (Tilla cordata ‘Chancole’)
Mature Height: 35′ Canopy Spread: 20′
Minimum Park Strip Width: 4ft
Overhead Power Lines: No
Details: Pyramidal in habit. Dark green leaves turn yellow in fall.
Chinese Dogwood (Cornus kousa chinensis)
Mature Height: 25′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes
Details: Globe-shaped. Dark green foliage turns orange, red and purple in fall. White floral clusters
Chinese Flame Tree (Koelreuteria bipinnata)
Mature Height: 20-30′ Canopy Spread: 20-30′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Seed pods, needs sun
Columnar Goldenrain (Koelreuteria paniculata)
Mature Height: 30′ Canopy Spread: 6′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Columnar habit. Green leaves. Yellow flowers and fall color.
Columnar Siberian Crabapple (Malus Baccata)
Mature Height: 30′ Canopy Spread:10′
Minimum Park Strip Width: 4ft
Overhead Power Lines: No
Details: Columnar habit. White flower, yellow-red fruit.
Crimson Cloud Hawthorn (Crataegus laevigata)
Mature Height: 25′ Canopy Spread: 18′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Oval habit with glossy green leaves and bright red flowers and fruit. This species is native to Oregon.
David’s Maple (Acer davidii)
Mature Height: 30′ Canopy Spread: 20′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes
Details: Broadleaf deciduous tree, upright, slightly spreading, variable.
Dogwoods (Cornus spp.)
Mature Height: 15-30′ Height: 30′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Many varieties, good spring flowers and fall color. Some dogwoods are more disease-prone than others.
Eastern Redbud (Cercis Canadensis)
Mature Height: 20-35′ Canopy Spread: 25-40′
Minimum Park Strip Width: 8ft
Overhead Power Lines: No
Details: Pink flowers
Edith Bogue Magnolia (Magnolia grandiflora)
Mature Height: 30′ Canopy Spread:15′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes
Details: Globe-shaped habit. Green foliage turns bright yellow and red in fall.
Flowering Ash (Fraxinus ornus)
Mature Height: 30′ Canopy Spread: 15′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Globe-shaped habit. Green leaves become yellow in fall. Off-white flower is fragrant
Galaxy Magnolia (Magnolia ‘Galaxy’)
Mature Height: 35′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Adaptable to wide range of soil and cultural conditions, including sod culture. Grows best in full sun.
Golden Desert Ash (Fraxinus excelsior ‘Aureafolia’)
Mature Height: 25′ Canopy Spread: 20′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes
Details: Globe-shaped. Outstanding yellow color throughout the year.
Hedge Maple (Acer Campestre)
Mature Height: 30′ Canopy Spread 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Flowers small, greenish, in upright small, upright pubescent clusters.
Japanese Hornbeam (Carpinus japonicas)
Mature Height: 20-30′ Canopy Spread: 12-15′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Wide spread, densely branched
Japanese Snowbell (Styrax japonicum)
Mature Height: 20-30′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Spreads wide, mildly fragrant, not tolerant to heat or drought
Japanese Tree Lilac (Syringa reticulate)
Mature Height: 25′ Canopy Spread: 20′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Pyramidal in habit. White floral clusters. Yellow-brown fruit.
Kwanzan Cherry (Prunus serrulata)
Mature Height: 30′ Canopy Spread: 20′
Minimum Park Strip Width: 8ft
Overhead Power Lines: Yes
Details: Vase-shaped habit. Dark green foliage becomes bronze or orange in fall. Deep pink flower.
Metro Gold Hedge Maple (Acer campestre ‘Panacek’)
Mature Height: 30′ Canopy Spread: 25′
Minimum Park Strip Width: 8ft
Overhead Power Lines: No
Details: Excellent and tough street tree, it produces fewer seeds than typical and has an improved, bright yellow fall color.
Mountain Ash (Sorbus spp.)
Mature Height: 10-30′ Canopy Spread: 20′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Fruit attracts birds, species vary
Norwegian Sunset Maple (Acer truncatum x Acer platanoides)
Mature Height: 35′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: No
Details: Oval with dark green foliage and yellow-orange to red fall color. Nice branch structure.
Pacific Sunset Maple (Acer truncatum x Acer platanoides)
Mature Height: 30′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: No
Details: Globe-shaped habit. Dark green foliage becomes yellow, orange, and red in fall.
Paperbark Maple (Acer griseum)
Mature Height: 20-30′ Canopy Spread: 20-30′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Exfoliating bark, light shade
Persian Parrotia (Parrotia persica)
Mature Height: 35′ Canopy Spread: 20′
Minimum Park Strip Width: 4ft
Overhead Power Lines: No
Canopy Spread: Low-branching, broadly pyramidal to rounded tree with unusual form and texture. Flowers have showy red stamens and fall color is excellent.
Queen Elizabeth Maple (Acer campestre ‘Evelyn’)
Mature Height: 35′ Canopy Spread: 30′
Minimum Park Strip Width: 4ft
Overhead Power Lines: No
Details: Oval habit. Dark green foliage turns yellow in fall.
Redbud (Cercis Canadensis)
Mature Height: 25′ Canopy Spread: 30′
Minimum Park Strip Width: 8ft
Overhead Power Lines: Yes
Details: Globe-shaped habit. Dark green leaves turn yellow in fall. Pink flower. Very shade tolerant. May suffer damage in windstorms.
Redspire Pear (Pyrus calleryana ‘Redspire’)
Mature Height: 35′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: No
Details: Pyramidal, dense, and symmetrical with medium green, glossy foliage turning yellow to red in fall.
Rocky Mountain Glow Maple (Acer grandidentatum ‘Schmidt’)
Mature Height: 25′ Canopy Spread: 15′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Oval habit. Dark green foliage turns bright red in fall.
Rocky Mountain Maple (Acer glabrum)
Mature Height: 20-35′ Canopy Spread: 20-25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Winged fruit ‘helicopters. The species is native to Oregon.
Rocky Mountain White Oak (Quercus gambelli)
Mature Height: 20-30′ Canopy Spread: 20-30′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Acorns
Saratoga Ginkgo (Ginkgo biloba ‘Saratoga’)
Mature Height: 35′ Canopy Spread: 30′
Minimum Park Strip Width: 4ft
Overhead Power Lines: No
Details: Extremely free of pests. Very tolerant of pollution and salt. Yellow fall color.
Saucer Magnolia/Tulip Tree (Magnolia x soulangiana)
Mature Height: 15-30′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Big white/pink flowers, spread wide
September Goldenrain (Koelreuteria paniculata ‘September’)
Mature Height: 30′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes
Details: Globe-shaped habit with green leaves and yellow flowers. Yellow and orange fall color.
Snowcloud Serviceberry/Juneberry (Amelanchier laevis ‘Snowcloud’)
Mature Height: 25′ Canopy Spread:15′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Upright oval in habit. Dark green leaves – scarlet in fall. White flower clusters. Blue-purple fruit.
Sourwood (Oxydendrum arboreum)
Mature Height: 35′ Canopy Spread: 20′
Minimum Park Strip Width: 8ft
Overhead Power Lines: No
Details: The roots are shallow, and the tree grows best when there is little root competition; it also requires acidic soils for successful growth.
Tricolor Beech (Fragus sylvatica ‘Purpurea Tricolor’)
Mature Height: 35′ Canopy Spread: 25′
Minimum Park Strip Width: 4ft
Overhead Power Lines: No
Details: Oval habit. Purple leaves have a rose-pink and cream border.
Trident Maple (Acer buergeranum)
Mature Height: 20-30′ Canopy Spread: 25-30′
Minimum Park Strip Width: 4ft
Overhead Power Lines: Yes/No
Details: Greenish yellow flowers, forks and spreads wide