Native plants for Clackamas County, Oregon
911 native plants recorded in Clackamas County, Oregon
The USDA plant database has 1,485 plants recorded growing wild in Clackamas County. 911 of them are native to the lower 48, and 206 are introduced species that this page leaves out.
By type: 546 wildflowers and herbs, 145 grasses and sedges, 71 shrubs, 68 low woody plants, 60 trees, 21 vines. USDA has rated sun, soil and water needs for 308 of them (34%), and only those can be matched to a spot below. Annual ragweed (Ambrosia artemisiifolia), Beach strawberry (Fragaria chiloensis) and 19 more are also recorded as introduced.
What fits each kind of spot in Clackamas County
| Spot | Rated to fit | Rated not to | Unrated |
|---|---|---|---|
| Sun all day | 307 | 0 | 604 |
| Half shade | 213 | 94 | 604 |
| Under trees | 111 | 196 | 604 |
| Heavy clay | 174 | 134 | 603 |
| Sandy, drains fast | 196 | 112 | 603 |
| Never watered | 112 | 196 | 603 |
| Stays soggy | 141 | 167 | 603 |
Sun all day in Clackamas County: 307 rated natives
114 wildflowers and herbs, 81 grasses and sedges, 47 trees, 36 shrubs, 22 low woody plants, 7 vines. The first 8, ranked by how easy a start they make:
- American alpine speedwell (Veronica wormskjoldii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial - American bistort (Polygonum bistortoides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · moderate growth · perennial - 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 - Bog blueberry (Vaccinium uliginosum) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial
Half shade in Clackamas County: 213 rated natives
70 wildflowers and herbs, 65 grasses and sedges, 33 trees, 22 shrubs, 17 low woody plants, 6 vines. The first 8, ranked by how easy a start they make:
- American bistort (Polygonum bistortoides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · moderate growth · perennial · high shade tolerance - 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 - Bush penstemon (Penstemon fruticosus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 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 - 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
Under trees in Clackamas County: 111 rated natives
41 grasses and sedges, 33 wildflowers and herbs, 14 trees, 13 shrubs, 8 low woody plants, 2 vines. The first 8, ranked by how easy a start they make:
- American bistort (Polygonum bistortoides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · moderate 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 - Bigflower agoseris (Agoseris grandiflora) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.8 ft mature · moderate growth · perennial - Bush penstemon (Penstemon fruticosus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 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 - 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
Heavy clay in Clackamas County: 174 rated natives
72 wildflowers and herbs, 53 grasses and sedges, 23 trees, 12 shrubs, 9 low woody plants, 5 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 - 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 - 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 - 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 - 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 Clackamas County: 196 rated natives
62 wildflowers and herbs, 47 grasses and sedges, 38 trees, 29 shrubs, 15 low woody plants, 5 vines. The first 8, ranked by how easy a start they make:
- American bistort (Polygonum bistortoides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · moderate 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 - Bush penstemon (Penstemon fruticosus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 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 - Clasping arnica (Arnica amplexicaulis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial - Cliff dwarf-primrose (Douglasia laevigata) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 0.2 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
Never watered in Clackamas County: 112 rated natives
27 grasses and sedges, 25 wildflowers and herbs, 24 shrubs, 17 trees, 15 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 · 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 - Kinnikinnick (Arctostaphylos uva-ursi) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 0.5 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 - Wax currant (Ribes cereum) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · rapid 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 - California yerba santa (Eriodictyon californicum) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 8 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
Stays soggy in Clackamas County: 141 rated natives
65 wildflowers and herbs, 52 grasses and sedges, 12 trees, 5 low woody plants, 5 shrubs, 2 vines. The first 8, ranked by how easy a start they make:
- Arctic pearlwort (Sagina saginoides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.3 ft mature · moderate growth · perennial · takes saturated soil - 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 - 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 - Buckbean (Menyanthes trifoliata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial · takes saturated soil - Chamisso arnica (Arnica chamissonis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial · takes saturated soil - Clasping arnica (Arnica amplexicaulis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 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 - Heartleaf bittercress (Cardamine cordifolia) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · moderate growth · perennial · takes saturated soil
Natives Clackamas County has that most of Oregon does not
5 natives here are on file in no more than 2 of Oregon's 36 counties. A few of them:
- Clammy groundcherry (Physalis heterophylla): only here
- Velvet bentgrass (Agrostis canina): 2 counties
- Threeleaf goldthread (Coptis trifolia): 2 counties
- Largebracted plantain (Plantago aristata): 2 counties
- Yellowishwhite bladderwort (Utricularia ochroleuca): 2 counties
Where to start in Clackamas County
If you have only one spot to fill, sun all day is where Clackamas County gives you the most rated choice (307 plants), and American alpine speedwell (Veronica wormskjoldii) is the easiest start on that list. Under trees is the hard one here: 111 rated plants, so for that spot it is worth asking a local native-plant society about the 604 unrated natives too.