Native plants for Knox County, Maine
838 native plants recorded in Knox County, Maine
The USDA plant database has 1,348 plants recorded growing wild in Knox County. 838 of them are native to the lower 48, and 277 are introduced species that this page leaves out.
By type: 442 wildflowers and herbs, 180 grasses and sedges, 56 shrubs, 50 low woody plants, 85 trees, 25 vines. USDA has rated sun, soil and water needs for 323 of them (39%), and only those can be matched to a spot below. Annual ragweed (Ambrosia artemisiifolia), Biennial wormwood (Artemisia biennis) and 30 more are also recorded as introduced.
What fits each kind of spot in Knox County
| Spot | Rated to fit | Rated not to | Unrated |
|---|---|---|---|
| Sun all day | 322 | 0 | 516 |
| Half shade | 213 | 109 | 516 |
| Under trees | 108 | 214 | 516 |
| Heavy clay | 236 | 87 | 515 |
| Sandy, drains fast | 192 | 131 | 515 |
| Never watered | 106 | 217 | 515 |
| Stays soggy | 180 | 142 | 516 |
Sun all day in Knox County: 322 rated natives
109 wildflowers and herbs, 85 grasses and sedges, 68 trees, 35 shrubs, 16 low woody plants, 9 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 - American speedwell (Veronica americana) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · rapid growth · perennial - Beach pea (Lathyrus japonicus) vines
USDA growing data on file · conspicuous flowers · photo available · about 1.5 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 - Bluebead (Clintonia borealis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.1 ft mature · moderate 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 - Bristly dewberry (Rubus hispidus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate 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
Half shade in Knox County: 213 rated natives
79 wildflowers and herbs, 59 grasses and sedges, 44 trees, 18 shrubs, 7 low woody plants, 6 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 - Bluebead (Clintonia borealis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.1 ft mature · moderate growth · perennial · high shade tolerance - Bristly dewberry (Rubus hispidus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 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 - Lanceleaf tickseed (Coreopsis lanceolata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial · high shade tolerance - Lavender thrift (Limonium carolinianum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial · high shade tolerance - Lingonberry (Vaccinium vitis-idaea) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 0.5 ft mature · moderate growth · perennial · high shade tolerance - Marsh bellflower (Campanula aparinoides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial · high shade tolerance
Under trees in Knox County: 108 rated natives
40 wildflowers and herbs, 34 grasses and sedges, 22 trees, 8 shrubs, 3 low woody plants, 1 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 - Bluebead (Clintonia borealis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.1 ft mature · moderate growth · perennial - Bristly dewberry (Rubus hispidus) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 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 - Lanceleaf tickseed (Coreopsis lanceolata) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial - Lavender thrift (Limonium carolinianum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial - Lingonberry (Vaccinium vitis-idaea) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 0.5 ft mature · moderate growth · perennial - Marsh bellflower (Campanula aparinoides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial
Heavy clay in Knox County: 236 rated natives
80 wildflowers and herbs, 74 grasses and sedges, 41 trees, 24 shrubs, 10 low woody plants, 7 vines. The first 8, ranked by how easy a start they make:
- Bristly dewberry (Rubus hispidus) low woody plants
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 - Groundnut (Apios americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial - Lavender thrift (Limonium carolinianum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial - Marsh bellflower (Campanula aparinoides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial - Marsh hedgenettle (Stachys palustris) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 ft mature · moderate growth · perennial - Moss phlox (Phlox subulata) low woody plants
USDA growing data on file · conspicuous flowers · photo available · about 0.5 ft mature · rapid growth · perennial - Pennsylvania bittercress (Cardamine pensylvanica) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · rapid growth · perennial
Sandy, drains fast in Knox County: 192 rated natives
55 wildflowers and herbs, 54 trees, 41 grasses and sedges, 26 shrubs, 10 low woody plants, 6 vines. The first 8, ranked by how easy a start they make:
- Beach pea (Lathyrus japonicus) vines
USDA growing data on file · conspicuous flowers · photo available · about 1.5 ft mature · moderate growth · perennial - Bristly dewberry (Rubus hispidus) low woody plants
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 - Drummond's rockcress (Arabis drummondii) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 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 - Groundnut (Apios americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial - Kinnikinnick (Arctostaphylos uva-ursi) shrubs
USDA growing data on file · conspicuous flowers · photo available · about 0.5 ft mature · moderate growth · perennial - Lavender thrift (Limonium carolinianum) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial
Never watered in Knox County: 106 rated natives
30 trees, 29 wildflowers and herbs, 21 shrubs, 12 grasses and sedges, 9 low woody plants, 5 vines. The first 8, ranked by how easy a start they make:
- 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 - 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 - Beach pea (Lathyrus japonicus) vines
USDA growing data on file · conspicuous flowers · photo available · about 1.5 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 dewberry (Rubus hispidus) low woody plants
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 - 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 - Gray goldenrod (Solidago nemoralis) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · rapid growth · perennial
Stays soggy in Knox County: 180 rated natives
73 grasses and sedges, 67 wildflowers and herbs, 20 trees, 15 shrubs, 3 vines, 2 low woody plants. The first 8, ranked by how easy a start they make:
- 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 - Groundnut (Apios americana) vines
USDA growing data on file · conspicuous flowers · photo available · about 1 ft mature · rapid growth · perennial · takes saturated soil - Hooded lady's tresses (Spiranthes romanzoffiana) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2.5 ft mature · moderate growth · perennial · takes saturated soil - Marsh bellflower (Campanula aparinoides) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 2 ft mature · moderate growth · perennial · takes saturated soil - Marsh hedgenettle (Stachys palustris) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 3 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 - Northern St. Johnswort (Hypericum boreale) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.8 ft mature · moderate growth · perennial · takes saturated soil - Sea milkwort (Glaux maritima) wildflowers and herbs
USDA growing data on file · conspicuous flowers · photo available · about 0.9 ft mature · moderate growth · perennial · takes saturated soil
Natives Knox County has that most of Maine does not
6 natives here are on file in no more than 1 of Maine's 16 counties. A few of them:
- Wheat sedge (Carex atherodes): only here
- Inkberry (Ilex glabra): only here
- Douglas' fiddleneck (Amsinckia douglasiana): only here
- Alpine rockcress (Arabis alpina): only here
- Smooth Solomon's seal (Polygonatum biflorum): only here
- Yellowroot (Xanthorhiza simplicissima): only here
Where to start in Knox County
If you have only one spot to fill, sun all day is where Knox County gives you the most rated choice (322 plants), and Alkali buttercup (Ranunculus cymbalaria) is the easiest start on that list. Never watered is the hard one here: 106 rated plants, so for that spot it is worth asking a local native-plant society about the 515 unrated natives too.