Native plants for Union County, Iowa
244 native plants recorded in Union County, Iowa
The USDA plant database has 356 plants recorded growing wild in Union County. 244 of them are native to the lower 48, and 29 are introduced species that this page leaves out.
By type: 143 wildflowers and herbs, 47 grasses and sedges, 6 shrubs, 15 low woody plants, 23 trees, 10 vines. USDA has rated sun, soil and water needs for 95 of them (39%), and only those can be matched to a spot below. Annual ragweed (Ambrosia artemisiifolia), Biennial wormwood (Artemisia biennis) and 8 more are also recorded as introduced.
What fits each kind of spot in Union County
| Spot | Rated to fit | Rated not to | Unrated |
|---|---|---|---|
| Sun all day | 95 | 0 | 149 |
| Half shade | 75 | 20 | 149 |
| Under trees | 47 | 48 | 149 |
| Heavy clay | 66 | 29 | 149 |
| Sandy, drains fast | 63 | 32 | 149 |
| Never watered | 49 | 46 | 149 |
| Stays soggy | 41 | 54 | 149 |
Sun all day in Union County: 95 rated natives
38 wildflowers and herbs, 31 grasses and sedges, 20 trees, 3 shrubs, 2 low woody plants, 1 vines. The first 8, ranked by how easy a start they make:
- 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 goldstar (Hypoxis hirsuta) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 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 - Missouri goldenrod (Solidago missouriensis) wildflowers and herbs
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 - Panicledleaf ticktrefoil (Desmodium paniculatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 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
Half shade in Union County: 75 rated natives
31 wildflowers and herbs, 24 grasses and sedges, 15 trees, 2 shrubs, 2 low woody plants, 1 vines. The first 8, ranked by how easy a start they make:
- 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 - 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 - 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 - Common blue wood aster (Symphyotrichum cordifolium) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 5 ft mature · moderate growth · perennial · high shade tolerance - 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
Under trees in Union County: 47 rated natives
18 grasses and sedges, 17 wildflowers and herbs, 11 trees, 1 low woody plants. The first 8, ranked by how easy a start they make:
- Gray goldenrod (Solidago nemoralis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 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 - Prairie fleabane (Erigeron strigosus) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate 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 - Common blue wood aster (Symphyotrichum cordifolium) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 5 ft mature · moderate growth · perennial - 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
Heavy clay in Union County: 66 rated natives
28 wildflowers and herbs, 22 grasses and sedges, 12 trees, 2 shrubs, 1 vines, 1 low woody plants. The first 8, ranked by how easy a start they make:
- 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 - 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 - Spotted St. Johnswort (Hypericum punctatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 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 - 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 goldstar (Hypoxis hirsuta) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial - Panicledleaf ticktrefoil (Desmodium paniculatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial
Sandy, drains fast in Union County: 63 rated natives
24 wildflowers and herbs, 21 grasses and sedges, 16 trees, 1 shrubs, 1 low woody plants. The first 8, ranked by how easy a start they make:
- 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 - Missouri goldenrod (Solidago missouriensis) wildflowers and herbs
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 - Spotted St. Johnswort (Hypericum punctatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 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 - Common blue wood aster (Symphyotrichum cordifolium) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 5 ft mature · moderate growth · perennial
Never watered in Union County: 49 rated natives
20 wildflowers and herbs, 13 grasses and sedges, 11 trees, 3 shrubs, 1 vines, 1 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 - Leadplant (Amorpha canescens) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 4 ft mature · moderate growth · perennial · high drought tolerance - Common goldstar (Hypoxis hirsuta) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 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 - 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 - Panicledleaf ticktrefoil (Desmodium paniculatum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 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
Stays soggy in Union County: 41 rated natives
18 grasses and sedges, 15 wildflowers and herbs, 7 trees, 1 low woody plants. The first 8, ranked by how easy a start they make:
- 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 - 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 - Common goldstar (Hypoxis hirsuta) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 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 - Wild mint (Mentha arvensis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.6 ft mature · moderate 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 - White doll's daisy (Boltonia asteroides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 8 ft mature · rapid growth · perennial - American water horehound (Lycopus americanus) wildflowers and herbs
USDA growing data on file · photo available · about 1.8 ft mature · moderate growth · perennial · takes saturated soil
Natives Union County has that most of Iowa does not
18 natives here are on file in no more than 5 of Iowa's 99 counties. A few of them:
- Wolf's spikerush (Eleocharis wolfii): only here
- Midland fawnlily (Erythronium mesochoreum): only here
- Purple milkwort (Polygala sanguinea): 2 counties
- Calico aster (Symphyotrichum lateriflorum): 2 counties
- White four o'clock (Mirabilis albida): 3 counties
- Buffalo clover (Trifolium reflexum): 3 counties
- Carolina puccoon (Lithospermum caroliniense): 4 counties
- American stoneseed (Lithospermum latifolium): 4 counties
- Northern bugleweed (Lycopus uniflorus): 4 counties
- Slimflower scurfpea (Psoralidium tenuiflorum): 4 counties
Where to start in Union County
If you have only one spot to fill, sun all day is where Union County gives you the most rated choice (95 plants), and Common blue violet (Viola sororia) is the easiest start on that list. Stays soggy is the hard one here: 41 rated plants, so for that spot it is worth asking a local native-plant society about the 149 unrated natives too.