Native plants for Washington County, Oregon
464 native plants recorded in Washington County, Oregon
The USDA plant database has 844 plants recorded growing wild in Washington County. 464 of them are native to the lower 48, and 206 are introduced species that this page leaves out.
By type: 278 wildflowers and herbs, 73 grasses and sedges, 29 shrubs, 27 low woody plants, 43 trees, 14 vines. USDA has rated sun, soil and water needs for 171 of them (37%), and only those can be matched to a spot below. Annual ragweed (Ambrosia artemisiifolia), Bride's feathers (Aruncus dioicus) and 14 more are also recorded as introduced.
What fits each kind of spot in Washington County
| Spot | Rated to fit | Rated not to | Unrated |
|---|---|---|---|
| Sun all day | 170 | 0 | 294 |
| Half shade | 109 | 61 | 294 |
| Under trees | 56 | 114 | 294 |
| Heavy clay | 109 | 62 | 293 |
| Sandy, drains fast | 106 | 65 | 293 |
| Never watered | 66 | 105 | 293 |
| Stays soggy | 79 | 92 | 293 |
Sun all day in Washington County: 170 rated natives
62 wildflowers and herbs, 41 grasses and sedges, 35 trees, 14 shrubs, 12 low woody plants, 6 vines. The first 8, ranked by how easy a start they make:
- American speedwell (Veronica americana) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · rapid growth · perennial - American vetch (Vicia americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial - Bigflower agoseris (Agoseris grandiflora) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.8 ft mature · moderate growth · perennial - California blackberry (Rubus ursinus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial - California poppy (Eschscholzia californica) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate growth · perennial - Cluster rose (Rosa pisocarpa) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · rapid growth · perennial - Common selfheal (Prunella vulgaris) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · rapid growth · perennial - Dwarf rose (Rosa gymnocarpa) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial
Half shade in Washington County: 109 rated natives
33 wildflowers and herbs, 31 grasses and sedges, 24 trees, 9 low woody plants, 7 shrubs, 5 vines. The first 8, ranked by how easy a start they make:
- American vetch (Vicia americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial · high shade tolerance - Bigflower agoseris (Agoseris grandiflora) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.8 ft mature · moderate growth · perennial · high shade tolerance - California blackberry (Rubus ursinus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial · high shade tolerance - Cluster rose (Rosa pisocarpa) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · rapid growth · perennial · high shade tolerance - Largeflower hawksbeard (Crepis occidentalis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.9 ft mature · moderate growth · perennial · high shade tolerance - Slender cinquefoil (Potentilla gracilis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2.4 ft mature · moderate growth · perennial · high shade tolerance - Whitebark raspberry (Rubus leucodermis) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial · high shade tolerance - Canada goldenrod (Solidago canadensis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3.5 ft mature · rapid growth · perennial · high shade tolerance
Under trees in Washington County: 56 rated natives
20 grasses and sedges, 14 wildflowers and herbs, 9 trees, 6 low woody plants, 5 shrubs, 2 vines. The first 8, ranked by how easy a start they make:
- American vetch (Vicia americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial - Bigflower agoseris (Agoseris grandiflora) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.8 ft mature · moderate growth · perennial - California blackberry (Rubus ursinus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial - Cluster rose (Rosa pisocarpa) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · rapid growth · perennial - Largeflower hawksbeard (Crepis occidentalis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.9 ft mature · moderate growth · perennial - Slender cinquefoil (Potentilla gracilis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2.4 ft mature · moderate growth · perennial - Whitebark raspberry (Rubus leucodermis) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial - Canada goldenrod (Solidago canadensis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3.5 ft mature · rapid growth · perennial
Heavy clay in Washington County: 109 rated natives
44 wildflowers and herbs, 31 grasses and sedges, 20 trees, 6 low woody plants, 4 vines, 4 shrubs. The first 8, ranked by how easy a start they make:
- Bigflower agoseris (Agoseris grandiflora) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.8 ft mature · moderate growth · perennial - California blackberry (Rubus ursinus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial - Cluster rose (Rosa pisocarpa) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · rapid growth · perennial - Common selfheal (Prunella vulgaris) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · rapid growth · perennial - Heartleaf arnica (Arnica cordifolia) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · rapid growth · perennial - Idaho blue-eyed grass (Sisyrinchium idahoense) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.7 ft mature · moderate growth · perennial - Largeflower hawksbeard (Crepis occidentalis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.9 ft mature · moderate growth · perennial - Largeleaf avens (Geum macrophyllum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial
Sandy, drains fast in Washington County: 106 rated natives
34 wildflowers and herbs, 27 trees, 22 grasses and sedges, 13 shrubs, 6 low woody plants, 4 vines. The first 8, ranked by how easy a start they make:
- American vetch (Vicia americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial - Bigflower agoseris (Agoseris grandiflora) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.8 ft mature · moderate growth · perennial - California blackberry (Rubus ursinus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial - Cluster rose (Rosa pisocarpa) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · rapid growth · perennial - Common selfheal (Prunella vulgaris) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · rapid growth · perennial - Heartleaf arnica (Arnica cordifolia) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · rapid growth · perennial - Idaho blue-eyed grass (Sisyrinchium idahoense) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.7 ft mature · moderate growth · perennial - Largeflower hawksbeard (Crepis occidentalis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.9 ft mature · moderate growth · perennial
Never watered in Washington County: 66 rated natives
18 wildflowers and herbs, 15 trees, 13 grasses and sedges, 9 shrubs, 8 low woody plants, 3 vines. The first 8, ranked by how easy a start they make:
- American vetch (Vicia americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial · high drought tolerance - White hawkweed (Hieracium albiflorum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial · high drought tolerance - Hollyleaved barberry (Mahonia aquifolium) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 8 ft mature · moderate growth · perennial · high drought tolerance - Bigflower agoseris (Agoseris grandiflora) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.8 ft mature · moderate growth · perennial - California blackberry (Rubus ursinus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial - California poppy (Eschscholzia californica) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate growth · perennial - Cluster rose (Rosa pisocarpa) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · rapid growth · perennial - Common selfheal (Prunella vulgaris) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · rapid growth · perennial
Stays soggy in Washington County: 79 rated natives
34 wildflowers and herbs, 30 grasses and sedges, 9 trees, 2 low woody plants, 2 shrubs, 2 vines. The first 8, ranked by how easy a start they make:
- Broadleaf arnica (Arnica latifolia) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial · takes saturated soil - Fringed grass of Parnassus (Parnassia fimbriata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate growth · perennial · takes saturated soil - Arrowleaf ragwort (Senecio triangularis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 4 ft mature · moderate growth · perennial · takes saturated soil - Rose spirea (Spiraea douglasii) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 7 ft mature · moderate growth · perennial · takes saturated soil - American speedwell (Veronica americana) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · rapid growth · perennial - California poppy (Eschscholzia californica) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate growth · perennial - Cluster rose (Rosa pisocarpa) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · rapid growth · perennial - Greater creeping spearwort (Ranunculus flammula) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · moderate growth · perennial
Where to start in Washington County
If you have only one spot to fill, sun all day is where Washington County gives you the most rated choice (170 plants), and American speedwell (Veronica americana) is the easiest start on that list. Under trees is the hard one here: 56 rated plants, so for that spot it is worth asking a local native-plant society about the 294 unrated natives too.