Approved Tree List

Landscaper Patrick Metzger planting trees.

Tree Requirements

All trees shall be:

  • A minimum of 1.5-inch caliper at six inches above ground level
  • At least 8-10 feet high
  • Healthy grown nursery stock

All trees shall have a straight trunk, a well developed leader with tops and roots characteristic of the species cultivar or variety. All trees must be free of insects, diseases, mechanical injury, and other objectionable features when planted. Bare root stock shall leave a root system sufficient to insure survival and healthy growth. Balled and burlap (B&B) stock shall leave a natural sound ball sufficient to insure survival and healthy growth. All trees which are grafted are to be grafted at a minimum height of 7” above ground level.

Root Stock

Bare root stock shall leave a root system sufficient to ensure survival and healthy growth. Balled and burlap stock shall leave a natural sound ball sufficient to ensure survival and healthy growth. All trees that are grafted are to be grafted at a minimum height of seven inches above ground level.

Approved Street Trees

Trees marked with * are native to the Portland Metro Region.

  1. Trees permitted in minimum 3-foot planting area with no overhead utility wire conditions:
    • Cherry, Columnar Sargent Flowering - Prunus sargentii 'Columnaris'
    • Crabapple, Western - Malus fusca *
    • Crabapple, 'Golden raindrops'
    • Crabapple, 'Prairiefire'
    • Crabapple, 'Purple prince'
    • Crabapple - Malus 'Royal raindrops'
    • Crape myrtle - Lagerstroemia indica
    • Dogwood, Cornelian Cherry - Cornus mas
    • Dogwood, Eastern - Cornus florida
    • Dogwood, Kousa - Cornus kousa chinesis
    • Dogwood, Pacific - Cornus nutallii *
    • Fringetree - Chionanthus retusus
    • Glorybower, Harlequin - Clerondendrum trichotomum
    • Maple, Flame Amur - Acer ginnala 'Flame'
    • Maple, Norwegian Sunset - Acer truncatum x A. platanoides 'Keithsform'
    • Maple, Pacific Sunset - Acer truncatum x A. platanoides 'Warrenred'
    • Magnolia, acuminata 'Butterflies'
    • Magnolia, 'Galaxy'
    • Magnolia, virginiana 'Moonglow'
    • Oak, Skyrocket English - Quercus robur 'Fastigiata'
    • Plum, Thundercloud Flowering - Prunus cerasifera 'Thundercloud'
    • Redbud, Eastern - Cercis Canadensis
    • Serviceberry, Western - Amelanchier alnifolia *
    • Serviceberry, Amelanchier 'Autumn Brilliance'
    • Serviceberry, Amelanchier 'Spring Flurry'
    • Snowbell, Japanese - Styrax japonica
  2. Trees permitted in minimum 4-foot planting area where no overhead utility wire conditions exist:
    • Ash, Globe European - Fraxinus excelsior 'Globosum'
    • Ash, Golden Desert - Fraxinus oxycarpa aureafolia 'Golden Desert'
    • Birch, River - Betula nigra
    • Cherry, Yoshino Flowering - Prunus x yedoensis
    • Crabapple, Profusion - Malus 'Profusion'
    • Crabapple, Red Baron - Malus 'Red Baron'
    • Crabapple, Royalty - Malus 'Royalty'
    • Crabapple, Spring Snow - Malus 'Spring Snow'
    • Crabapple, Sugar Tymne - Malus 'Sugar Tyme'
    • Elm, Emerald sunshine - Ulmus propinqua 'JFS-Bieberich'
    • Ginkgo, Mayfield - Ginkgo biloba 'Mayfield'
    • Goldenrain - Koelreuteria paniculata
    • Goldenrain, Columnar - Koelreuteria paniculata 'Fastigiata'
    • Hawthorn, Lavalle - Crataegus x lavallei
    • Hawthorn, Washington - Crategus phaenopyrum
    • Hornbeam, Pyramidal European - Carpinus betulus 'Fastigiata'
    • Hornbeam, Pyramidal European - Carpinus betulus 'Frans Fontaine'
    • Hornbeam, American - Carpinus caroliniana
    • Hornbeam, Japanese - Carpinus japonica
    • Lilac, Japanese Tree - Syringa reticulata
    • Maple, Doric Red - Acer rubrum 'Doric'
    • Maple, English Hedge - Acer campestre
    • Maple, Paperbark - Acer griseum
    • Maple, Tatarian - Acer tataricum
    • Parrotia persica
    • Pear, Capital Flowering - Pyrus calleryana 'Capital'
    • Serviceberry, Cumulus - Amelanchier laevis x grandiflora 'Cumulus'
    • Serviceberry, Pyramidal Shadblow - Amelanchier canadensis 'Pyramidalis'
    • Serviceberry, Robin Hill Apple - Amelanchier x grandiflora 'Robin Hill'
    • Tupelo, Black, Blackgum or Sourgum - Nyssa sylvatica
    • Yellow Wood - Cladrastis kentuckia
  3. Trees permitted in minimum 6-foot planting area with no overhead utility wire conditions:
    • Beech, Tricolor European - Fagus sylvatica 'Purpurea Tricolor'
    • Elderberry, Blue - Sambucus cerulea *
    • Elm, Emerald sunshine - Ulmus propinqua 'JFS-Bieberich'
    • Elm, Frontier - Ulmus 'Frontier'
    • Ginkgo - Ginkgo biloba
    • Ginkgo, Autumn Gold - Ginkgo biloba 'Autumn Gold'
    • Ginkgo, Fairmont - Ginkgo biloba 'Fairmont'
    • Ginkgo, Princeton Sentry - Ginkgo biloba 'Princeton Sentry'
    • Ginkgo, Shangri-la - Ginkgo biloba 'Shangri-la'
    • Honeylocust, Skyline - Gleditsia triacanthos 'Skyline'
    • Horsechestnut, Briotii Red - Aesculus x carnea 'Briotii'
    • Horsechestnut, Ruby Red - Aesculus x carnea 'Ruby Red'
    • Katsura - Cericidiphyllum Japonicum
    • Locust, Globe - Robinia pseudocacia 'Umbraculifera'
    • Magnolia, Southern - Magnolia grandiflora
    • Maple, Armstrong - Acer x freemanii 'Armstrong'
    • Maple, Bowhall Red - Acer rubrum 'Bowhall'
    • Maple, Crimson King Norway - Acer platanoides 'Crimson King'
    • Maple, Greencolumn Black - Acer nigrum 'Greencolumn'
    • Maple, Karpick Red - Acer rubrum 'Karpick'
    • Maple, Legacy Sugar - Acer saccharum 'Legacy'
    • Maple, Scanlon Red - Acer rubrum 'Scanlon'
    • Oak, Skymaster English - Quercus robur 'Pyramich'
    • Pagoda Tree, Regent Japanese - Sophora japonica 'Regent'
    • Pine, Vanderwolf - Pinus flexilis 'Vanderwolf'
    • Stewartia, Japanese - Stewartia pseudocamellia
    • Tuliptree, Arnold - Liriodendron tulipfera 'Fastigiatum'
    • Willow, Pacific - Salix lucida ssp. Lasiandra *
    • Zelkova, Green Vase - Zelkova serrata 'Green Vase'
    • Zelkova, Village Green - Zelkova serrata 'Village Green'
  4. Trees permitted in minimum 8-foot planting area with no overhead utility wire conditions:
    • Alder, Red - Alnus rubra *
    • Ash, Autumn Applause White - Fraxinus americana 'Autumn Applause'
    • Ash, Oregon - Fraxinus latifolia *
    • Ash, Summit Green - Fraxinus pennsylvanica 'Summit'
    • Cascara - Rhamnus purshiana *
    • Cedar, Western Red - Thuja plicata *
    • Coffeetree, Kentucky - Gymnocladus dioicus
    • Cork Tree, Amur - Phellodendron amurense
    • Douglas Fir - Pseudotsuga menziesii *
    • Elm, Homestead - Ulmus 'Homestead'
    • Filbert, Turkish - Corylus colurna
    • Fir, Grand - Abies grandis *
    • Hackberry, Common - Celtis occidentalis
    • Hawthorn, Black - Crataegus douglasii *
    • Hemlock, Western - Tsuga heterphylla *
    • Hophornbeam, American - Ostrya virginiana
    • Linden, DeGroot Littleleaf - Tilia cordata 'DeGroot'
    • Linden, Glenleven Littleleaf - Tilia cordata 'Glenleven'
    • Linden, Green Mountain Silver - Tilia tomentosa 'Green Mountain'
    • Linden, Redmond - Tilia americana 'Redmond'
    • Linden, Redmond Crimean - Tilia x euchlora 'Redmond'
    • Maple, Arrowhead Sugar - Acer saccharum 'Arrowhead'
    • Maple, Autumn Blaze - Acer rubrum x A. saccharinum 'Autumn Blaze'
    • Maple, Autumn Flame Red - Acer rubrum 'Autumn Flame'
    • Maple, Big Leaf - Acer macrophyllum *
    • Maple, Celebration - Acer x freemanii 'Celzam'
    • Maple, October Glory Red - Acer rubrum 'October Glory'
    • Maple, Red Sunset Red - Acer rubrum 'Red Sunset'
    • Mulberry, Kingan Fruitless - Morus alba 'Kingan'
    • Oak, Burr - Quercus macrocarpa
    • Oak, English - Quercus robur
    • Oak, Forest Green Hungarian or Italian - Quercus frainetto 'Schmidt'
    • Oak, Northern Red - Quercus rubra
    • Oak, Oregon - Quercus garryana *
    • Oak, Pin - Quercus palustris
    • Oak, Sawtooth - Quercus acutissima
    • Oak, Scarlet - Quercus coccinea
    • Oak, Shingle - Quercus imbricaria
    • Oak, Shumard - Quercus shumardii
    • Oak, Swamp White - Quercus bicolor
    • Oak, Westminster Globe - Quercus robur 'Michround'
    • Poplar, Yellow or Tuiliptree - Liriodendron tulipifera
    • Rubber Tree, Hardy - Eucommia ulmoides
    • Tuliptree or Yellow Poplar - Liriodendron tulipifera
  5. Trees permitted by PGE and City of Beaverton for use under power wires:
    • Amur Maple - Acer ginnala
    • Hedge Maple - Acer campstre
    • Paper Bark Maple - Acer griseum
    • Apple Service Berry - Amelanchier
    • Shadblow Service Berry - Amelanchier canadensis
    • Eastern Redbud - Cercis canadensis
    • Glorybower - Clerodendrum trichotomum
    • Flowering Dogwood - Cornus florida
    • Japanese Dogwood - Cornus kousa
    • Washington Hawthorn - Crataegue phaenopyrum
    • Laualle Hawthorn - Crataegus x lavallei
    • Globe-Headed European Ash - Fraxinus excelsior ‘Globosa’
    • Flowering Ash - Fraxinus ornus
    • Golden Desert Ash - Fraxinus oxycarpa ‘Aureafolia’
    • Golden Rain Tree - Koelreuteria paniculata
    • Flowering Crabapple - Malus 'Spring snow' or 'Indian magic'
    • Crabapple - 'Golden raindrops'
    • Crabapple - 'Prairiefire'
    • Crabapple - 'Purple prince'
    • Crabapple - Malus 'Royal raindrops'
    • Flowering Cherry - Prunus 'Mt. Fugi'
    • Flowering Pear - Pyrus calleryana 'Cleveland select'
    • Japanese Snowball - Styrax japonia

City of Beaverton Approved Street Tree List - PDF

Volunteers on a sunny day planting young trees in established forest.