Native plants for Johnson County, Illinois
979 native plants recorded in Johnson County, Illinois
The USDA plant database has 1,381 plants recorded growing wild in Johnson County. 979 of them are native to the lower 48, and 136 are introduced species that this page leaves out.
By type: 561 wildflowers and herbs, 184 grasses and sedges, 25 shrubs, 46 low woody plants, 113 trees, 50 vines. USDA has rated sun, soil and water needs for 363 of them (37%), and only those can be matched to a spot below. Annual ragweed (Ambrosia artemisiifolia), Common dandelion (Taraxacum officinale) and 15 more are also recorded as introduced.
What fits each kind of spot in Johnson County
| Spot | Rated to fit | Rated not to | Unrated |
|---|---|---|---|
| Sun all day | 363 | 0 | 616 |
| Half shade | 236 | 127 | 616 |
| Under trees | 127 | 236 | 616 |
| Heavy clay | 263 | 100 | 616 |
| Sandy, drains fast | 219 | 144 | 616 |
| Never watered | 140 | 223 | 616 |
| Stays soggy | 182 | 181 | 616 |
Sun all day in Johnson County: 363 rated natives
131 wildflowers and herbs, 96 grasses and sedges, 94 trees, 19 vines, 12 shrubs, 11 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 - Bulbous bittercress (Cardamine bulbosa) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.4 ft mature · rapid growth · perennial - Canadian lousewort (Pedicularis canadensis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 1.3 ft mature · moderate growth · perennial - Carolina elephantsfoot (Elephantopus carolinianus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.7 ft mature · rapid growth · perennial - Climbing dayflower (Commelina diffusa) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial - Climbing hempvine (Mikania scandens) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial
Half shade in Johnson County: 236 rated natives
84 wildflowers and herbs, 66 trees, 62 grasses and sedges, 9 vines, 8 low woody plants, 7 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 · high shade tolerance - Carolina elephantsfoot (Elephantopus carolinianus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.7 ft mature · rapid growth · perennial · high shade tolerance - 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 · high shade tolerance - Gray goldenrod (Solidago nemoralis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial · high shade tolerance - Illinois bundleflower (Desmanthus illinoensis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate 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 - Prairie fleabane (Erigeron strigosus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial · high shade tolerance - Spreading yellowcress (Rorippa sinuata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial · high shade tolerance
Under trees in Johnson County: 127 rated natives
41 wildflowers and herbs, 41 trees, 35 grasses and sedges, 4 low woody plants, 3 vines, 3 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 - Carolina elephantsfoot (Elephantopus carolinianus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.7 ft mature · rapid 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 - Gray goldenrod (Solidago nemoralis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial - Illinois bundleflower (Desmanthus illinoensis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 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 - Prairie fleabane (Erigeron strigosus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial - Spreading yellowcress (Rorippa sinuata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial
Heavy clay in Johnson County: 263 rated natives
99 wildflowers and herbs, 74 grasses and sedges, 61 trees, 11 vines, 9 low woody plants, 9 shrubs. The first 8, ranked by how easy a start they make:
- Carolina elephantsfoot (Elephantopus carolinianus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.7 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 - 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 - Fringeleaf wild petunia (Ruellia humilis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.6 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 peppervine (Ampelopsis cordata) vines
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial - Illinois bundleflower (Desmanthus illinoensis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 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
Sandy, drains fast in Johnson County: 219 rated natives
73 wildflowers and herbs, 70 trees, 52 grasses and sedges, 13 vines, 7 shrubs, 4 low woody plants. The first 8, ranked by how easy a start they make:
- Carolina elephantsfoot (Elephantopus carolinianus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.7 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 - 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 - Fringeleaf wild petunia (Ruellia humilis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.6 ft mature · moderate growth · perennial - Gray goldenrod (Solidago nemoralis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 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 - Heartleaf peppervine (Ampelopsis cordata) vines
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial - Illinois bundleflower (Desmanthus illinoensis) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial
Never watered in Johnson County: 140 rated natives
45 wildflowers and herbs, 45 trees, 26 grasses and sedges, 9 shrubs, 8 vines, 7 low woody plants. The first 8, ranked by how easy a start they make:
- 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 - Trumpet creeper (Campsis radicans) vines
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial · high drought tolerance - 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 - Foxglove beardtongue (Penstemon digitalis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 4 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 - Carolina elephantsfoot (Elephantopus carolinianus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.7 ft mature · rapid growth · perennial - Closed bottle gentian (Gentiana andrewsii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial
Stays soggy in Johnson County: 182 rated natives
69 grasses and sedges, 65 wildflowers and herbs, 33 trees, 6 vines, 5 shrubs, 4 low woody plants. The first 8, ranked by how easy a start they make:
- American lotus (Nelumbo lutea) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial · takes saturated soil - 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 - Bluntleaf bedstraw (Galium obtusum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 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 - Limestone bittercress (Cardamine douglassii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · moderate growth · perennial · takes saturated soil - Nodding lady's tresses (Spiranthes cernua) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · moderate 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
Natives Johnson County has that most of Illinois does not
26 natives here are on file in no more than 5 of Illinois's 102 counties. A few of them:
- Log fern (Dryopteris celsa): only here
- Twining screwstem (Bartonia paniculata): 2 counties
- Splitbeard bluestem (Andropogon ternarius): 3 counties
- Drooping sedge (Carex prasina): 3 counties
- Velvet panicum (Dichanthelium scoparium): 3 counties
- Giant sedge (Carex gigantea): 3 counties
- Sharpscale sedge (Carex oxylepis): 3 counties
- Eastern hayscented fern (Dennstaedtia punctilobula): 3 counties
- Trailing yellow loosestrife (Lysimachia radicans): 3 counties
- Lowland beardtongue (Penstemon alluviorum): 3 counties
Where to start in Johnson County
If you have only one spot to fill, sun all day is where Johnson County gives you the most rated choice (363 plants), and Atlantic camas (Camassia scilloides) is the easiest start on that list. Under trees is the hard one here: 127 rated plants, so for that spot it is worth asking a local native-plant society about the 616 unrated natives too.