Native plants for Washington County, Idaho
522 native plants recorded in Washington County, Idaho
The USDA plant database has 882 plants recorded growing wild in Washington County. 522 of them are native to the lower 48, and 102 are introduced species that this page leaves out.
By type: 306 wildflowers and herbs, 68 grasses and sedges, 31 shrubs, 68 low woody plants, 36 trees, 13 vines. USDA has rated sun, soil and water needs for 203 of them (39%), and only those can be matched to a spot below. Annual ragweed (Ambrosia artemisiifolia), Common yarrow (Achillea millefolium) and 6 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 | 203 | 0 | 319 |
| Half shade | 165 | 38 | 319 |
| Under trees | 102 | 101 | 319 |
| Heavy clay | 99 | 104 | 319 |
| Sandy, drains fast | 143 | 60 | 319 |
| Never watered | 131 | 72 | 319 |
| Stays soggy | 62 | 141 | 319 |
Sun all day in Washington County: 203 rated natives
78 wildflowers and herbs, 38 grasses and sedges, 31 trees, 28 low woody plants, 24 shrubs, 4 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 - Arumleaf arrowhead (Sagittaria cuneata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.6 ft mature · moderate growth · perennial - Ballhead waterleaf (Hydrophyllum capitatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid 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 - Canby's biscuitroot (Lomatium canbyi) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial - Desert yellow fleabane (Erigeron linearis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial - Eaton's fleabane (Erigeron eatonii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial
Half shade in Washington County: 165 rated natives
61 wildflowers and herbs, 34 grasses and sedges, 24 low woody plants, 24 trees, 19 shrubs, 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 shade tolerance - Arumleaf arrowhead (Sagittaria cuneata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.6 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 - Canby's biscuitroot (Lomatium canbyi) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial · high shade tolerance - Desert yellow fleabane (Erigeron linearis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial · high shade tolerance - Eaton's fleabane (Erigeron eatonii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate 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 - Lewis flax (Linum lewisii) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial · high shade tolerance
Under trees in Washington County: 102 rated natives
33 wildflowers and herbs, 23 grasses and sedges, 18 low woody plants, 16 shrubs, 10 trees, 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 - Arumleaf arrowhead (Sagittaria cuneata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.6 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 - Canby's biscuitroot (Lomatium canbyi) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial - Desert yellow fleabane (Erigeron linearis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial - Eaton's fleabane (Erigeron eatonii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 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 - Lewis flax (Linum lewisii) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial
Heavy clay in Washington County: 99 rated natives
40 wildflowers and herbs, 24 grasses and sedges, 14 trees, 12 shrubs, 6 low woody plants, 3 vines. 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 - Eaton's fleabane (Erigeron eatonii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate 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 - Hooker's balsamroot (Balsamorhiza hookeri) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 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 - Modoc hawksbeard (Crepis modocensis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.4 ft mature · moderate growth · perennial - Pale agoseris (Agoseris glauca) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial
Sandy, drains fast in Washington County: 143 rated natives
50 wildflowers and herbs, 26 trees, 24 grasses and sedges, 22 low woody plants, 18 shrubs, 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 - Bigflower agoseris (Agoseris grandiflora) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.8 ft mature · moderate growth · perennial - Canby's biscuitroot (Lomatium canbyi) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial - Desert yellow fleabane (Erigeron linearis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial - Eaton's fleabane (Erigeron eatonii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate 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 - Holboell's rockcress (Arabis holboellii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial - Hooker's balsamroot (Balsamorhiza hookeri) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial
Never watered in Washington County: 131 rated natives
48 wildflowers and herbs, 24 low woody plants, 20 shrubs, 20 grasses and sedges, 17 trees, 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 · high drought tolerance - Canby's biscuitroot (Lomatium canbyi) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial · high drought tolerance - Desert yellow fleabane (Erigeron linearis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial · high drought tolerance - Eaton's fleabane (Erigeron eatonii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial · high drought tolerance - Missouri goldenrod (Solidago missouriensis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial · high drought tolerance - Munro's globemallow (Sphaeralcea munroana) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial · high drought tolerance - Oneflower helianthella (Helianthella uniflora) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial · high drought tolerance - Pale evening primrose (Oenothera pallida) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial · high drought tolerance
Stays soggy in Washington County: 62 rated natives
23 wildflowers and herbs, 22 grasses and sedges, 13 trees, 2 low woody plants, 2 shrubs. The first 8, ranked by how easy a start they make:
- Arumleaf arrowhead (Sagittaria cuneata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.6 ft mature · moderate growth · perennial · takes saturated soil - Cursed buttercup (Ranunculus sceleratus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial · takes saturated soil - Largehead clover (Trifolium macrocephalum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial · takes saturated soil - Pacific onion (Allium validum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial · takes saturated soil - Rocky Mountain iris (Iris missouriensis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial · takes saturated soil - American licorice (Glycyrrhiza lepidota) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 4 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 - Canada germander (Teucrium canadense) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3.3 ft mature · moderate growth · perennial · takes saturated soil
Natives Washington County has that most of Idaho does not
11 natives here are on file in no more than 2 of Idaho's 44 counties. A few of them:
- Shelton's violet (Viola sheltonii): only here
- Northern watermeal (Wolffia borealis): only here
- Tall woolly buckwheat (Eriogonum elatum): 2 counties
- Valdivia duckweed (Lemna valdiviana): 2 counties
- Snake canyon milkvetch (Astragalus vallaris): 2 counties
- Indian Valley sedge (Carex aboriginum): 2 counties
- Cronquist's stickseed (Hackelia cronquistii): 2 counties
- Wild crab apple (Peraphyllum ramosissimum): 2 counties
- Tall phacelia (Phacelia procera): 2 counties
- Ray goldenweed (Pyrrocoma radiata): 2 counties
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 (203 plants), and American speedwell (Veronica americana) is the easiest start on that list. Stays soggy is the hard one here: 62 rated plants, so for that spot it is worth asking a local native-plant society about the 319 unrated natives too.