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Urban Forestry
Arborist's Office
206-684-TREE (8733)
Street Tree Planting Procedures
New Tree Planting
Tree Planting Tips
Trees Approved with Reservations
Watering Newly Planted Trees
Watering Established Trees
Urban Forestry Permits
Tree Service Companies With An Annual Permit
Tree Pruning Guide
Landscape Architecture
Seasonal Tree Care
Utility/Tree Inspections
Heritage Tree Program
Seattle Tree Inventory
Landscape Architecture & Natural Systems
Urban Forestry Class and Resources
A City Among the Trees
Traffic Circles

Street Tree Planting Procedures

Medium/Large Trees: Not Appropriate Under Wires
Approved For Planting Strips 5’ or larger
(Wider planting strips recommended where space allows)


Botanical name

Common Name

Height in feet

Spread in feet

Flowers

Fall Color

Comments/Notes

Acer freemanii

Autumn Blaze Maple

50

40

 

orange

 

Acer nigrum ‘Green Column’

Green Column Maple

50

20

 

yellow to orange

Good close to buildings.

Acer platanoides

‘Columnar’

40

15

 

yellow

Good close to buildings.

Acer platanoides

Emerald Queen’

50

40

yellow

yellow

 

Acer platanoides

‘Parkway’

40

25

yellow

yellow

 

Acer rubrum ‘Bowhall’

Bowhall Maple

40

15

 

yellow orange

 

Acer rubrum ‘Karpick’

Karpick Maple

35-40

20

 

yellow to orange

May work under very high powerlines with arborist’s approval.

Acer rubrum ‘Scarsen’

Scarlet Sentinel Maple

40

20

 

yellow orange

 

Acer pseudoplatanus ‘Atropurpureum’

Spaethii Maple

40

30

 

not significant

Leaves green on top purple underneath.

Aesculus x carnea ‘Briottii’

Red Horsechestnut

30

35

large 10’’ red clusters

no

Resists heat and drought better than other horsechestmuts.

Carpinus betulus ‘Fastigiata’

Pyramidal European Hornbeam

35

25

 

yellow

 

Fagus sylvatica ‘Dawyck Purple’

Dawyck Purple Beech

40

12

 

no

Purple foliage.

Betula jacquemontii

Jacquemontii Birch

40

30

 

yellow

White bark makes for good winter interest.

Fraxinus oxycarpa ‘Raywood’

Raywood Ash

35

25

 

reddish purple

 

Fraxinus pennsylvanica ‘Patmore’

Patmore Ash

45

 

35

 

yellow

Extremely hardy, may be seedless.

Fraxinus americana

‘Autumn Applause’ Ash

40

25

 

purple

 

Fraxinus pennsylvanica

‘Urbanite’ Ash

50

40

 

deep bronze

 

Ginko biloba ‘Autumn Gold’

45

35

 

yellow

 

Ginko biloba ‘Princeton Sentry’

40

15

 

yellow

Very narrow growth.

Nothofagus antarctica

Southern Beech

50

35

 

none

Rugged twisted branching and petite foliage.

Oxydendron arboreum

Sourwood

35

12

white, not noticeable

red

Consistent and brilliant fall color.

Gleditsia triacanthos

Shademaster Honeylocust

45

35

not noticeable

yellow

Do not confuse with ‘Sunburst’.

Quercus ‘Crimschmidt’

Crimson Spire Oak

45

15

   

Hard to find.

Quercus Ilex

Holly Oak

20

20

   

Prune to keep small, leave it alone to grow large.

Prunus sargentii

‘Columnarus’

35

15

pink

orange to orange red

The cherry with the best fall color.

Prunus cerasifera ‘Thundercloud’ Plum

20

20

light pink

 

Dark purple foliage.

Tilia americana ‘Redmond’

35

20

fragrant

yellow

Pyramidal, needs water.

Robinia x ambigua

‘Idahoensis’ Pink Idaho Locust

35

25

rose pink

yellow

Fragrant flowers.

Tilia cordata ‘Chancole’

Chancelor Linden

35

20

not noticeable

yellow

Pyramidal.

Tilia cordata ‘Greenspire’

Greenspire Linden

40

30

 

yellowish

Symmetrical, pyramidal form.

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