Plant Wiki

The open plant encyclopedia

Know any plant.
Grow it well.

Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.

  • 13,000+plants with full pages
  • 365,000+plant species worldwide
  • 220+countries covered

Common in

See all

The plants people record most in your country, and ones that grow there wild.

What do you want to do?

Popular plants

Browse all plants

See them in 3D

All plants in 3D

Browse plants

Filter by what you want to do, shape, origin, country, care and safety.

Plant Wiki › Browse plants

Appalachian mountainmint

Pycnanthemum flexuosum

Also called Appalachian Mountain Mint, Savanna Mountainmint

Appalachian mountainmint
Photo: Alex Abair, CC BY 4.0

Appalachian mountainmint (Pycnanthemum flexuosum) is a native perennial mint from the southeastern United States, with white to lavender flowers and aromatic foliage. It is grown in gardens for its flowers and pollinator appeal, and it does best in open, sunny sites with reasonable moisture.

Family
Lamiaceae (Mint family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Keep soil evenly moist during the growing season, and avoid waterlogging in winter.
Soil
Average to moist, well-drained loam; tolerates a range of soil types.
Temperature
Hardy in cold winters (about USDA zones 4 to 9); protect young plants from late frost.
How easy
Easy
Safety
Not known to be toxic
Native range
SE. U.S.A.
Climate
temperate

About

Pycnanthemum flexuosum, commonly known as savanna mint, or savanna mountain-mint, is an herbaceous perennial plant native to the southeastern United States.

Where it grows

Pycnanthemum flexuosum is distributed from southeastern Virginia south to northeastern Florida and west to panhandle Florida and southern Mississippi. There are also disjunct populations inland in southern central Tennessee and in bogs and rock outcrops in southwestern North Carolina.

Other Pycnanthemum plants

Sierra mint · Stone mountainmint · Florida mountainmint · Hoary mountainmint · Onehair mountainmint · Thinleaf mountainmint · Clustered mountainmint · Coastal plain mountainmint · Hairy Mountain Mint · Narrowleaf mountainmint · Torrey's Mountain Mint · Virginia mountainmint

Text excerpted from the Wikipedia article Pycnanthemum flexuosum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Credits & terms

Identify a plant

Point at a leaf or flower and snap. One plant in frame works best.

Your photo
Starting camera…