Hillsboro
Updated for the 2022 growing season
Available Spring 2022
Armstrong Gold Maple
Acer rubrum ‘JFS-KW78’
Zone: 4
40′ x 12′
Full sun
Vigorous growing tree with dense, compact, upright habit. Less leggy than parent Armstrong. Bark is silver-gray and has medium green foliage that turns golden to orange in fall.
Pacific Sunset® Maple
Acer truncatum x A. platanoides ‘Warrenred’
Zone: 4
30′ x 25′
Full sun
Medium-sized maple with glossy green foliage and a rounded canopy. Tolerant of poor and urban growing conditions. Faster growth rate then other maples.
Carpinus betulus ‘Fastigiata’
Zone: 4
40′ x 30′
Full sun
An attractive, columnar tree with dense branches when young, spreading into a broad cone shape with age.
Cercis canadensis
Zone: 4
20′ x 25′
Full to part sun
A wonderful small, tree whose branches are covered with light pinkish purple flowers in early spring before the leaves emerge.
Venus Dogwood
Cornus kousa x nuttallii ‘KN 30-8’
Zone: 5
15′ x 20′
Full to part shade
A vigorous upright dogwood that blooms profuse, large, white blooms in spring.
Vanessa Ironwood
Parrotia persica ‘Vanessa’
Zone: 5
28′ x 14′
Full sun
Forms a tight, dense, upright habit with fine-textured foliage. Impressive fall color, ranging from orange to red.
Available Spring 2022 (Not Expected to Reach Caliper Till Fall 2022)
Bowhall Maple
Acer rubrum ‘Bowhall’
Zone: 3
40′ x 15′
Full sun
Moderate to fast growing while keeping a much more narrow habit than other red maples. Bright yellow to orange fall color.
Carpinus betulus ‘Fastigiata’
Zone: 4
40′ x 30′
Full sun
An attractive, columnar tree with dense branches when young, spreading into a broad cone shape with age.
American Hop-hornbeam
Ostrya virginiana
Zone: 2
35′ x 25′
Full sun to part shade
A medium sized shade tree with a rounded crown. Hop-like blooms are unique but typically unnoticed in large trees. Also commonly called Ironwood because of it’s hard wood.
Autumn Purple Ash
Fraxinus americana ‘Autumn Purple’
Zone: 3
50′ x 40′
Full sun
Broad-conical male clone that is noted for its excellent, long-lasting, reddish-purple to deep mahogany-purple fall color. Gray bark develops distinctive diamond-shaped ridging on mature trees.
Ruby Vase Persian Ironwood
Parrotia persica ‘Ruby Vase’
Zone: 5
20′ x 15′
Full sun
Forms an upright, vase shaped habit. Foliage emerges a reddish-purple maturing to a medium green. Unique, small, reddish purple flowers in winter.
Click here for the list of approved street trees for Hillsboro