Pycnanthemum incanum.
Hoary Mountain Mint is a perennial wildflower native to the eastern United States where it can often be found growing in open woods and thickets, on hill sides and in old fields, and along the edges and clearings of woodlands.
The silvery-white plant grows to about 3 feet in height and produces large, white to deep purple flowers that bloom from July through September and are a favorite of bees, butterflies, and other beneficial pollinators.
Easily spreads to form small colonies, making it a great choice for larger gardens or meadow/prairie plantings.
Hoary Mountain Mint
Growth Chart
Hardiness Zones:
4 to 9
Light Requirement:
Full to partial sun
Soil Type:
Rich, moist to dry
Sow Depth:
Surface
Plant Spacing:
18 to 24 inches
Germination Temp:
65°F to 70°F
Germination Time:
20 to 30 days
Bloom Time:
July through September
Growing Tips
Direct sow in early spring by lightly pressing the seeds into the soil's surface. If starting indoors, sow seeds in flats, keeping the soil moist and at a temperature around 70 degrees F until germination.
