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Pycnanthemum muticum (short-toothed mountain mint)
Species Distribution Map: Click to enlarge
Map Color Key © 2013 BONAP

Pycnanthemum muticum

short-toothed mountain mint or clustered mountain mint

We give up! So many of you claimed this mountain mint to be superior to Pycnanthemum virginianum that we decided to try it for ourselves. We love it! Its leaves are broader and more lustrous, the bracts are silvery and very showy, the flowers are pinkish and its habit is more compact. Nicely aromatic. This native is happiest at the wood's edge, so it is excellent for a naturalized border or woodland garden. Mountain Mint is one of the best nectar sources for native butterflies, so butterfly gardeners can't do without this one. Our bees go crazy for it, too!

SIZE
Pycnanthemum muticum LP50 - 50 per flat Availability
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Height

2-3 Feet

Spread

2 Feet

Spacing

18 Inches

Bloom Color

White

USDA Hardiness Zone 4-8

short-toothed mountain mint Interesting Notes

Pycnanthemum muticum is a well-loved mountain mint, by insects and humans alike. Growing 2-3’ tall and spreading quickly, this broad-leaved Pycnanthemum has lustrous foliage and silvery bracts with flowers ranging in color from white to pink to purple. The foliage is very aromatic with its spearmint aroma present even in the dead of winter. Commonly found along a wood’s edge in the wild, it is an excellent choice for a naturalized border or woodland garden where sun transitions to shade. P. muticum blooms in late summer through to early fall and as the sun warms its flowers, the abundant nectar supply and accessible nectaries attracts pollinators from large to small, from sweat bees to flies to skippers to wasps.

A highly competitive workhorse for extreme sites and slopes, P. muticum does well in a variety of sites from full sun to shade and dry to moist conditions. Found from Maine to Texas following the lowlands of the Appalachain Mountains, blunt mountain mint grows in grassy open places, meadows, fields, low woodland areas and occasionally in dry upland woods. Though not overly aggressive, it will spread via rhizomes, so give it room to grow. To ensure a tidier clump, cleave spreading runners with a sharp spade in the spring to maintain size in highly-managed landscapes.

A member of the mint family, the aromatic oils in the foliage make Pycnanthemum very deer and rabbit resistant. Mountain mint contains pulegone which is a natural insect repellant. It is a larval host plant for the Gray Hairstreak Butterfly. Good to incorporate along the perennial border, rain garden, or near the vegetable garden to entice pollinators and best planted in large clumps where insects can easily move from flower to flower. The strong root systems make a tough soil stabilizer that is great for slopes and streambanks.

Pycnanthemum muticum Growing and Maintenance Tips

A highly competitive workhorse for extreme sites and slopes, P. muticum does well in a variety of sites from full sun to shade and dry to moist conditions. Though not overly aggressive, it will spread via rhizomes, so give it room to grow.

Good Substitutions

Appalachian mountain mint Pycnanthemum flexuosum

Key Characteristics & Attributes

Full Sun
Full Sun
Full Shade
Full Shade
Part Sun
Part Sun
Moist
Moist
Pollinator-friendly
Pollinator-friendly
Deer Resistant
Deer Resistant
Drought Tolerant
Drought Tolerant
Fragrant
Fragrant
Cut Flower
Cut Flower
Summer
Summer

Additional Information

Soil Moisture Needs
Dry
Average
Green Infrastructure
Erosion Control
Woodland
Meadow/Prairie
Wetland Indicator Status
Falcutative (FAC)
Plug Type
Landscape Plug™
Attributes
Native to North America
Season of Interest (Flowering)
Late Summer
Propagation Type
Vegetative