approved tree list

18 Pages·2017·1.88 MB·English

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
Indicates general fall foliage color.
Department of Community Development
Indicates general flower color.
1/5 LARGE STREET TREES
Scientific Name Sun Exposure Add’l Mature Size (ft) Canopy Plant Fall Bloom
Native Cover Strip Time & Characteristics
Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color Color
Acer freemanii
Fast-growing; dense,
var. ‘Autumn Blaze’ 50’ 40’ 1,257 6’ oval crown;
Autumn Blaze Maple excellent autumn colors
*
Acer nigrum
Similar to A. saccharum,
var. ‘Green Column’
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
Scientific Name Sun Exposure Add’l Mature Size (ft) Canopy Plant Fall Bloom
Native Cover Strip Time & Characteristics
Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color 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;
45’ 35’ 962 6’ dense; strong resistance
'Patmore'
to disease and pests
Patmore Ash
Fraxinus
pennsylvanica
50’ 40’ 1,257 6’ Pyramidal in shape; dense
'Urbanite'
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
Scientific Name Sun Exposure Add’l Mature Size (ft) Canopy Plant Fall Bloom
Native Cover Strip Time & Characteristics
Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color 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;
resistant to oak root fungus
Fruitless Gum Tree
*
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
Scientific Name Sun Exposure Add’l Mature Size (ft) Canopy Plant Fall Bloom
Native Cover Strip Time & Characteristics
Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color 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
Scientific Name Sun Exposure Add’l Mature Size (ft) Canopy Plant Fall Bloom
Native Cover Strip Time & Characteristics
Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color 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’ 50’ 30’ 707 8’ Straight-trunked tree with a
narrow crown
Redmond Linden
Tilia tomentosa
Light green leaves that are
var. ‘Sashazam’
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
Scientific Name Sun Exposure Add’l Mature Size (ft) Canopy Plant Fall Bloom
Native Cover Strip Time & Characteristics
Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color 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,
low-traffic areas
Doric Maple
Acer truncatum x
Fast-growing;
A. platanoides
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
Scientific Name Sun Exposure Add’l Mature Size (ft) Canopy Plant Fall Bloom
Native Cover Strip Time & Characteristics
Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color 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
Scientific Name Sun Exposure Add’l Mature Size (ft) Canopy Plant Fall Bloom
Native Cover Strip Time & Characteristics
Common Name Sun Partial Shade Water Height Spread (sq. ft.) Width Color 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. ‘Victoria’ 20’ 15’ 177 5’
large white, fragrant flowers;
Southern Magnolia
unpredictable in form
Mid-
Magnolia x kewensis
Spring
Deciduous; new leaves
var. ‘Wada’s Memory’
30’ 20’ 314 5’ are copper in color;
Wada’s Memory
casts dense shade
Magnolia
*
Summer
Oxydendrum
Pyramidal shape;
arboreum 30’ 15’ 177 5’ fragrant summer flowers;
Sourwood requires well-drained soils
Spring
Prunus cerasifera Dense, upright crown; blooms
best and retains purple-leafed
var. ‘Krauter Vesuvius’ 30’ 20’ 314 5’
color in full sun; tolerant of
Cherry Plum
moist well-drained soils
10 City of Tukwila Approved Tree List