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Tree List (Approved) CITY OF TUKWILA APPROVED TREE LIST 2017 NOTES GRAPHICS KEY • Substitute species may be considered upon request. Indicates a columnar or fastigiated species of variety that is Review and approval by City staff will be required. * not preferred unless site constraints require a narrow canopy. • Canopy cover figures are estimates of aerial shade Indicates a tree that will do well in a location that receives after 30 years of growth. at least 6 hours of direct sun a day. Indicates a tree that will do well in a location that receives 4–6 hours of direct sun a day, or is shaded by other plants or buildings for part of the day. Indicates a tree that will do well in a location that receives less than 4 hours of direct sunlight a day, or is shaded by or an of understory to other trees. Indicates a tree that will require regular irrigation and moist soil throughout its lifetime for best performance. CITY OF TUKWILA Department of Community Development Indicates general fall foliage color. Indicates general flower color. 1/5 LARGE STREET TREES Canopy Plant Bloom Scientific Name Sun Exposure Add’l Mature Size (ft) Fall Native Cover Strip Time & Color Characteristics Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color Acer freemanii Fast-growing; dense, var. ‘Autumn Blaze’ 50’ 40’ 1,257 6’ oval crown; Autumn Blaze Maple excellent autumn colors * Acer nigrum var. ‘Green Column’ Similar to A. saccharum, 65’ 25’ 491 6’ but more resistant to Green Column heat and drought Sugar Maple Acer rubrum Red twigs and branchlets; 60’ 40’ 1,257 6’ does not tolerate Red Maple excessive pollution Acer pseudoplatanus Autumn color dependent on 40’ 40’ 1,257 6’ Sycamore Maple variant; moderate growth rate Acer saccharum Fast growing; stout branches var. 'Bonfire' 50’ 40’ 1,257 6’ form a dense canopy Bonfire Sugar Maple Acer saccharum 'Commemoration' Fast growing; stout branches 50' 35’ 962 6’ Commemoration form a dense canopy Sugar Maple Acer saccharum Fast growing; stout branches 'Green Mountain' 45' 35’ 962 6’ form a dense canopy; Mountain Sugar Maple tolerant of heat and drought City of Tukwila Approved Tree List 3 LARGE STREET TREES 2/5 Canopy Plant Bloom Scientific Name Sun Exposure Add’l Mature Size (ft) Fall Native Cover Strip Time & Color Characteristics Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color Spring Aesculus x carnea Crimson spring-time blossoms; rounded crown var. ‘Briotti’ 40’ 30’ 707 6’ with dark green leaves; Red Horse-chestnut mature trees cast dense shade Pyramidal in shape; heart Cercidiphyllum shaped leaves; to enhance japonicum 40’ 25’ 491 6’ fall color, water less in the late Katsura summer months; leaves smell like brown sugar in the fall Fraxinus americana Fast-growing; 80’ 35’ 962 6’ useful as a shade tree; Autumn Applause Ash oval-shaped crown Fraxinus latifolia 60’ 35’ 962 6’ Tolerant of wet conditions Oregon Ash Fraxinus pennsylvanica Compact, oval crown; 'Patmore' 45’ 35’ 962 6’ dense; strong resistance to disease and pests Patmore Ash Fraxinus pennsylvanica 'Urbanite' 50’ 40’ 1,257 6’ Pyramidal in shape; dense Urbanite Ash * Gingko biloba Pollution and heat tolerant; 'Princeton Sentry' pyramidal in shape; autumn 40 15’ 177 6’ Princeton Sentry leaves fall to form a beautiful Gingko groundcover blanket 4 City of Tukwila Approved Tree List 3/5 LARGE STREET TREES Canopy Plant Bloom Scientific Name Sun Exposure Add’l Mature Size (ft) Fall Native Cover Strip Time & Color Characteristics Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color * Pollution and heat tolerant; Gingko biloba upright and narrow in shape; ‘Magyar’ 50’ 25’ 491 6’ autumn leaves fall Magyar Gingko to form a beautiful groundcover blanket Gleditsia triacanthos Thornless variety; green, fernlike leaves; tolerant of inermis 50’ 35’ 962 8’ acidic soils, salt, drought, cold, Honeylocust heat, wind, and pollution Spring Liriodendron Fast-growing; straight trunk tulipifera 60’ 35’ 962 8’ with pyramidal crown; thrives Tulip Tree in rich, well-drained soil Liquidambar Requires a large planting styraciflua strip; mixed autumn color 60’ 30’ 707 8’ var. ‘Rotundiloba’ of purple, yellow and red; Fruitless Gum Tree resistant to oak root fungus * Crooked branches with Nyssa sylvatica a reddish bark; produces 50’ 20’’ 314 6’ Tupelo excellent shade; tolerant of poor draining soils Quercus coccinea Pyramidal when young, 60’ 40’ 1,257 6’ but round when mature; Scarlet Oak gray-brown bark Quercus frainetto Fast-growing; dark gray bark; 50’ 30’ 707 6’ glossy deep green leaves; Italian Oak symmetrical City of Tukwila Approved Tree List 5 LARGE STREET TREES 4/5 Canopy Plant Bloom Scientific Name Sun Exposure Add’l Mature Size (ft) Fall Native Cover Strip Time & Color Characteristics Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color Quercus garryana Gray, scaly bark; leathery and 50’ 40’ 1,257 8’ Oregon Oak glossy green leaves Quercus imbricaria Grows roughly 1’ per year; gray 50’ 40’ 1,257 6’ Shingle Oak brown bark; lance-shaped leaves Quercus macrocarpa Flaky, grayish brown bark; 60’ 40’ 1,257 8’ Bur Oak acorns have a fringed cap Quercus phellos Pyramidal in shape; 50’ 35’ 962 6’ Willow Oak smooth gray bark No significant fall color; Quercus robur fast growing tree; 60’ 40’ 1,257 8’ English Oak short trunk with wide, sprawling crown Quercus rubra Fast-growing; round canopy; 60’ 45’ 1,590 8’ requires fertile soil and Red Oak regular moisture Pyramidal when young, grows Quercus shumardii to a open crown in maturity; 60’ 40’ 1,257 6’ similar in appearance Shumard Oak to the Scarlet Oak; tolerates most soil conditions 6 City of Tukwila Approved Tree List 5/5 LARGE STREET TREES Canopy Plant Bloom Scientific Name Sun Exposure Add’l Mature Size (ft) Fall Native Cover Strip Time & Color Characteristics Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color Tolerant of many soils; Quercus velutina acorns have a fringed cap; 55’ 45’ 1,590 8’ Black Oak black bark in maturity that produces a yellow dye Late Tilia americana Spring var. ‘Redmond’ Straight-trunked tree with a 50’ 30’ 707 8’ narrow crown Redmond Linden Tilia tomentosa var. ‘Sashazam’ Light green leaves that are 50’ 30’ 707 8’ silvery on the underside; Satin Shadow tolerant of heat and drought Silver Linden Late Weeping branches; Spring Tilia petiolaris dark green leaves have a 60’ 40’ 1,257 6’ fuzzy underside that give the Pendant Silver Linden tree a silvery appearance in the wind Zelkova serrata Attractive bark; tolerant of 'Greenvase' 45’ 40’ 1,257 6’ drought and wind; good Green Vase Zelkova shade tree; vase-shaped Zelkova serrata Attractive bark; tolerant of 'Village Green' 45’ 40’ 1,257 6’ drought and wind; good Village Green Zelkova shade tree; vase-shaped City of Tukwila Approved Tree List 7 MEDIUM STREET TREES 1/5 Canopy Plant Bloom Scientific Name Sun Exposure Add’l Mature Size (ft) Fall Native Cover Strip Time & Color Characteristics Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color Dense, rounded crown; Acer campestre many cultivars of 30’ 30’ 707 5’ Hedge Maple similar growth; grows well in the Pacific Northwest * Acer rubrum Fast-growing, tolerates most soils; var. ‘Bowhall’ 45’ 20’ 314 6’ performs best in native, Bowhall Maple low-traffic areas Acer rubrum Fast-growing, tolerates most var. ‘Doric’ 45’ 40’ 1,257 6’ soils; performs best in native, Doric Maple low-traffic areas Acer truncatum x A. platanoides Fast-growing; 40’ 25’ 491 5’ tolerant of heat and drought; ‘Warrens Red’ dark green, glossy leaves Pacific Sunset Maple Betula albosinensis Flaking orange to var. septentrionalis 40’ 35’ 962 5’ orange-brown bark Chinese Red Birch Betula papyfera 50’ 25’ 491 6’ Attractive, creamy-white bark Paper Birch Attractive, smooth Carpinus caroliniana blue-gray bark; can be 30’ 25’ 491 5’ American Hornbeam single- or multi-trunked; excellent fall color 8 City of Tukwila Approved Tree List 2/5 MEDIUM STREET TREES Canopy Plant Bloom Scientific Name Sun Exposure Add’l Mature Size (ft) Fall Native Cover Strip Time & Color Characteristics Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color Late Spring Gray bark; beautiful fall color; Cladrastis kentukea deep rooting, so it is possible 40’ 40’ 1,257 5’ Yellow wood to plant beneath the tree; needs regular pruning Spring Cornus controversa Fast-growing; picturesque 'June Snow' 40’ 40’ 1,257 5’ branches; full sun is Giant Dogwood necessary for best bloom Mid- Cornus Spring florida x nuttallii Clusters of bright white 30’ 20’ 314 5’ Eddie's White Wonder flowers in mid-spring Dogwood Shrub-like, vase-like shape; Corylus cornuta needs adequate space 25’ 30’ 707 5’ Beaked Hazelnut to grow; catkins add winter interest Spring Crataegus crus-galli Smooth, glossy green leaves; var. ‘Inermis’ clusters of white flowers in 30’ 30’ 707 5’ Thornless Cockspur the spring months; tiny fruits Hawthorne attractive to bees and birds Spring Crataegus x lavalii Dark green leathery leaves; 25’ 20’ 314 5’ clusters of red fruits add Lavalle Hawthorne winter color * Fagus sylvatica Cone-like shape; smooth gray bark; var. ‘Dawyck Purple’ 35’ 12’ 114 6’ no underplantings; Beech Tree not for high pedestrian areas City of Tukwila Approved Tree List 9 MEDIUM STREET TREES 3/5 Canopy Plant Bloom Scientific Name Sun Exposure Add’l Mature Size (ft) Fall Native Cover Strip Time & Color Characteristics Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color Fagus sylvatica No underplantings; not for high pedestrian areas; var. ‘Rohanii’ 50’ 30’ 707 6’ tolerant of tough urban Cutleaf Purple Beech conditions Gingko biloba Pollution and heat tolerant; pyramidal in shape; autumn Autumn Gold' 45’ 35’ 962 6’ leaves fall to form a beautiful Autumn Gold Gingko groundcover blanket Spring Halesia monticola Bell-shaped flowers; 45’ 30’ 707 5’ attractive when planted Mountain Silverbell with rhododendrons Summer Magnolia grandiflora thru Fall Evergreen; broad, dark green leaves; var.
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