Native plants for Warren County, Illinois
334 native plants recorded in Warren County, Illinois
The USDA plant database has 506 plants recorded growing wild in Warren County. 334 of them are native to the lower 48, and 67 are introduced species that this page leaves out.
By type: 196 wildflowers and herbs, 57 grasses and sedges, 11 shrubs, 15 low woody plants, 40 trees, 15 vines. USDA has rated sun, soil and water needs for 148 of them (44%), and only those can be matched to a spot below. Annual ragweed (Ambrosia artemisiifolia), Common dandelion (Taraxacum officinale) and 13 more are also recorded as introduced.
What fits each kind of spot in Warren County
| Spot | Rated to fit | Rated not to | Unrated |
|---|---|---|---|
| Sun all day | 148 | 0 | 186 |
| Half shade | 99 | 49 | 186 |
| Under trees | 50 | 98 | 186 |
| Heavy clay | 113 | 35 | 186 |
| Sandy, drains fast | 90 | 58 | 186 |
| Never watered | 63 | 85 | 186 |
| Stays soggy | 68 | 80 | 186 |
Sun all day in Warren County: 148 rated natives
62 wildflowers and herbs, 37 grasses and sedges, 33 trees, 6 shrubs, 5 vines, 5 low woody plants. The first 8, ranked by how easy a start they make:
- Atlantic camas (Camassia scilloides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 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 - Bristly buttercup (Ranunculus hispidus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · rapid growth · perennial - Common blue violet (Viola sororia) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.3 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 - Downy yellow violet (Viola pubescens) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.3 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 - Lanceleaf loosestrife (Lysimachia lanceolata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial
Half shade in Warren County: 99 rated natives
41 wildflowers and herbs, 26 grasses and sedges, 22 trees, 4 low woody plants, 4 shrubs, 2 vines. The first 8, ranked by how easy a start they make:
- 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 - Pale purple coneflower (Echinacea pallida) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate 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 - Canadian milkvetch (Astragalus canadensis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.5 ft mature · moderate growth · perennial · high shade tolerance · toxicity: slight - Dotted smartweed (Polygonum punctatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3.2 ft mature · moderate growth · perennial · high shade tolerance - Pinnate prairie coneflower (Ratibida pinnata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 4 ft mature · moderate growth · perennial · high shade tolerance - Prairie blazing star (Liatris pycnostachya) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3.5 ft mature · moderate growth · perennial · high shade tolerance - Sawtooth sunflower (Helianthus grosseserratus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 5 ft mature · moderate growth · perennial · high shade tolerance
Under trees in Warren County: 50 rated natives
18 wildflowers and herbs, 18 grasses and sedges, 13 trees, 1 shrubs. The first 8, ranked by how easy a start they make:
- Blackeyed Susan (Rudbeckia hirta) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial - Pale purple coneflower (Echinacea pallida) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate 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 - Canadian milkvetch (Astragalus canadensis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.5 ft mature · moderate growth · perennial · toxicity: slight - Dotted smartweed (Polygonum punctatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3.2 ft mature · moderate growth · perennial - Pinnate prairie coneflower (Ratibida pinnata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 4 ft mature · moderate growth · perennial - Prairie blazing star (Liatris pycnostachya) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3.5 ft mature · moderate growth · perennial - Sawtooth sunflower (Helianthus grosseserratus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 5 ft mature · moderate growth · perennial
Heavy clay in Warren County: 113 rated natives
48 wildflowers and herbs, 32 grasses and sedges, 21 trees, 5 shrubs, 4 vines, 3 low woody plants. The first 8, ranked by how easy a start they make:
- Common selfheal (Prunella vulgaris) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · rapid growth · perennial - Groundnut (Apios americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial - Lanceleaf loosestrife (Lysimachia lanceolata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial - Pale purple coneflower (Echinacea pallida) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate growth · perennial - Spotted St. Johnswort (Hypericum punctatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial - Spring avens (Geum vernum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.6 ft mature · moderate growth · perennial - Wild blue phlox (Phlox divaricata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · rapid growth · perennial - Atlantic camas (Camassia scilloides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial
Sandy, drains fast in Warren County: 90 rated natives
37 wildflowers and herbs, 28 trees, 18 grasses and sedges, 3 vines, 3 shrubs, 1 low woody plants. The first 8, ranked by how easy a start they make:
- Common selfheal (Prunella vulgaris) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · rapid growth · perennial - Groundnut (Apios americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial - Lanceleaf loosestrife (Lysimachia lanceolata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial - Pale purple coneflower (Echinacea pallida) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate growth · perennial - Spotted St. Johnswort (Hypericum punctatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial - Spring avens (Geum vernum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.6 ft mature · moderate growth · perennial - Wild blue phlox (Phlox divaricata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 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
Never watered in Warren County: 63 rated natives
22 trees, 21 wildflowers and herbs, 10 grasses and sedges, 4 shrubs, 3 low woody plants, 3 vines. The first 8, ranked by how easy a start they make:
- Allegheny blackberry (Rubus allegheniensis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 6 ft mature · rapid growth · perennial · high drought tolerance - Carolina rose (Rosa carolina) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 5 ft mature · moderate growth · perennial · high drought tolerance - Blackeyed Susan (Rudbeckia hirta) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 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 - Downy yellow violet (Viola pubescens) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial - Lanceleaf loosestrife (Lysimachia lanceolata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial - Pale purple coneflower (Echinacea pallida) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.2 ft mature · moderate growth · perennial - Black raspberry (Rubus occidentalis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 6 ft mature · rapid growth · perennial
Stays soggy in Warren County: 68 rated natives
29 grasses and sedges, 26 wildflowers and herbs, 7 trees, 2 vines, 2 low woody plants, 2 shrubs. The first 8, ranked by how easy a start they make:
- American water plantain (Alisma subcordatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.5 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 - Sharpwing monkeyflower (Mimulus alatus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.3 ft mature · rapid growth · perennial · takes saturated soil - Smooth phlox (Phlox glaberrima) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 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 - Dotted smartweed (Polygonum punctatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3.2 ft mature · moderate growth · perennial · takes saturated soil - Purpleleaf willowherb (Epilobium coloratum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3.3 ft mature · moderate growth · perennial · takes saturated soil - Wild bergamot (Monarda fistulosa) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 4.9 ft mature · moderate growth · perennial · takes saturated soil
Where to start in Warren County
If you have only one spot to fill, sun all day is where Warren County gives you the most rated choice (148 plants), and Atlantic camas (Camassia scilloides) is the easiest start on that list. Under trees is the hard one here: 50 rated plants, so for that spot it is worth asking a local native-plant society about the 186 unrated natives too.