Native plants for Boulder County, Colorado
1,217 native plants recorded in Boulder County, Colorado
The USDA plant database has 1,961 plants recorded growing wild in Boulder County. 1,217 of them are native to the lower 48, and 266 are introduced species that this page leaves out.
By type: 701 wildflowers and herbs, 266 grasses and sedges, 66 shrubs, 108 low woody plants, 57 trees, 19 vines. USDA has rated sun, soil and water needs for 388 of them (32%), and only those can be matched to a spot below. Annual ragweed (Ambrosia artemisiifolia), Biennial wormwood (Artemisia biennis) and 24 more are also recorded as introduced.
What fits each kind of spot in Boulder County
| Spot | Rated to fit | Rated not to | Unrated |
|---|---|---|---|
| Sun all day | 385 | 0 | 832 |
| Half shade | 309 | 76 | 832 |
| Under trees | 184 | 201 | 832 |
| Heavy clay | 232 | 156 | 829 |
| Sandy, drains fast | 256 | 132 | 829 |
| Never watered | 169 | 219 | 829 |
| Stays soggy | 190 | 195 | 832 |
Sun all day in Boulder County: 385 rated natives
148 wildflowers and herbs, 120 grasses and sedges, 48 trees, 34 shrubs, 28 low woody plants, 7 vines. The first 8, ranked by how easy a start they make:
- Alkali buttercup (Ranunculus cymbalaria) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial - Alpine bistort (Polygonum viviparum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial - 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 - Blackeyed Susan (Rudbeckia hirta) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial
Half shade in Boulder County: 309 rated natives
115 wildflowers and herbs, 103 grasses and sedges, 40 trees, 25 shrubs, 21 low woody plants, 5 vines. The first 8, ranked by how easy a start they make:
- Alpine bistort (Polygonum viviparum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial · high shade tolerance - 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 - Blackeyed Susan (Rudbeckia hirta) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial · high shade tolerance - Blanketflower (Gaillardia aristata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial · high shade tolerance - Cutleaf daisy (Erigeron compositus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial · high shade tolerance - Downy paintedcup (Castilleja sessiliflora) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial · high shade tolerance
Under trees in Boulder County: 184 rated natives
66 wildflowers and herbs, 63 grasses and sedges, 26 trees, 15 shrubs, 13 low woody plants, 1 vines. The first 8, ranked by how easy a start they make:
- Alpine bistort (Polygonum viviparum) 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 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 - Blackeyed Susan (Rudbeckia hirta) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial - Blanketflower (Gaillardia aristata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial - Cutleaf daisy (Erigeron compositus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial - Downy paintedcup (Castilleja sessiliflora) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial
Heavy clay in Boulder County: 232 rated natives
93 wildflowers and herbs, 82 grasses and sedges, 25 trees, 15 low woody plants, 12 shrubs, 5 vines. The first 8, ranked by how easy a start they make:
- Alpine bistort (Polygonum viviparum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate 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 - Cutleaf daisy (Erigeron compositus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial - Eastern purple coneflower (Echinacea purpurea) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate growth · perennial - Groundnut (Apios americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 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 - Indian blanket (Gaillardia pulchella) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial
Sandy, drains fast in Boulder County: 256 rated natives
82 wildflowers and herbs, 77 grasses and sedges, 40 trees, 30 shrubs, 22 low woody plants, 5 vines. The first 8, ranked by how easy a start they make:
- Alpine bistort (Polygonum viviparum) 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 vetch (Vicia americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial - Blanketflower (Gaillardia aristata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate 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 - Cutleaf daisy (Erigeron compositus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial - Downy paintedcup (Castilleja sessiliflora) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial - Drummond's rockcress (Arabis drummondii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial
Never watered in Boulder County: 169 rated natives
48 grasses and sedges, 45 wildflowers and herbs, 26 shrubs, 24 trees, 22 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 - Cutleaf daisy (Erigeron compositus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial · high drought tolerance - Downy paintedcup (Castilleja sessiliflora) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial · high drought tolerance - Gooseberry currant (Ribes montigenum) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial · high drought tolerance - Indian blanket (Gaillardia pulchella) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid 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 - 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 - Old man's whiskers (Geum triflorum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · moderate growth · perennial · high drought tolerance
Stays soggy in Boulder County: 190 rated natives
81 wildflowers and herbs, 78 grasses and sedges, 18 trees, 6 low woody plants, 4 shrubs, 3 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 - 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 - 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 - Groundnut (Apios americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial · takes saturated soil
Natives Boulder County has that most of Colorado does not
80 natives here are on file in no more than 3 of Colorado's 63 counties. A few of them:
- Disk waterhyssop (Bacopa rotundifolia): only here
- Rattlesnake fern (Botrychium virginianum): only here
- Eastern purple coneflower (Echinacea purpurea): only here
- Tapertip rush (Juncus acuminatus): only here
- Forked rush (Juncus dichotomus): only here
- Grassleaf rush (Juncus marginatus): only here
- Lacy phacelia (Phacelia tanacetifolia): only here
- Rufous bulrush (Scirpus pendulus): only here
- Chaffweed (Anagallis minima): only here
- Sierra columbine (Aquilegia pubescens): only here
Where to start in Boulder County
If you have only one spot to fill, sun all day is where Boulder County gives you the most rated choice (385 plants), and Alkali buttercup (Ranunculus cymbalaria) is the easiest start on that list. Never watered is the hard one here: 169 rated plants, so for that spot it is worth asking a local native-plant society about the 829 unrated natives too.