Photo by Melody

PlantFiles: Hoary Mountain Mint, Whorled Mountain Mint
Pycnanthemum pilosum

Family: Lamiaceae (lay-mee-AY-see-ee) (Info)
Genus: Pycnanthemum (pik-NAN-thee-mum) (Info)
Species: pilosum (pil-OH-sum) (Info)

9 vendors have this plant for sale.

8 members have or want this plant for trade.


4-6 ft. (1.2-1.8 m)

9-12 in. (22-30 cm)

USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Mid Summer
Late Summer/Early Fall

Grown for foliage

Other details:
Average Water Needs; Water regularly; do not overwater
Flowers are fragrant

Soil pH requirements:
Unknown - Tell us

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By ViolaValley
Thumbnail #1 of Pycnanthemum pilosum by ViolaValley

By altagardener
Thumbnail #2 of Pycnanthemum pilosum by altagardener


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive DenaBolton On Jun 10, 2010, DenaBolton from Johnson City, TN wrote:

This is one of my favorite mints! It is easy to grow in full sun or partial shade. Some people claim that it is incredibly invasive; however, I have not had any problem. Of course, I also have a mint garden, so my idea of invasive is probably different from other people's idea. Nevertheless, it has not spread quite as much as some of my other mints. It does grow well in a container, too. It is edible and also has medicinal properties. I, however, love it for its fragrance, which is so different from my other mints.

Positive HummingbirdDude On Dec 12, 2009, HummingbirdDude from Whitehall, PA wrote:

Great Plant! It benefits alot of wildlife. It attrachs all sorts of wasps, bees, butterflies, and other insects. However the wasps and bees are not the stinging type i belive. Their very shiny looking, almost metalic. It likes to spread so be careful where you put it. Plus it smells awesome.


This plant has been said to grow in the following regions:

Efland, North Carolina
Hillsborough, North Carolina
Swanton, Ohio
Whitehall, Pennsylvania
Wilkes Barre, Pennsylvania
Johnson City, Tennessee
Viola, Tennessee

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