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Pycnanthemum flexuosum

Appalachian Mountain Mint is a spreading perennial with high pollinator value. Preferring rich loamy soil, it does well when soil is moist with good drainage and will spread readily when enough moisture and sunlight is provided. Like other members of the mint family, stems are square shaped and aromatic. The leaves also have a minty smell, are elliptical to lanceolate, and are arranged oppositely on stems. Because this plant is fragrant, it is typically avoided by rabbits and deer. Leaves turn red to burgundy in fall. Appalachian Mountain Mint blooms in white clusters called cymes during summer for a long period of time. Flowers are small and compact, tubular, and feature small purple spots that are hard to see unless you get up close. Pollinators such as predatory wasps gather at this plant, adding extra value to the garden as pest control. Due to its fragrance and unique texture, this plant is a treat for the senses. This plant is a larval host for both Gray Hairstreak Butterflies and Wavy-lined Emerald Moths.

Key Info

Scientific Name: Pycnanthemum flexuosum
Common Names: Appalachian Mountain Mint, Mountain Mint, Savannah Mountain Mint
Protected Plant Species: No
Light Requirement: ,
Moisture Requirement: ,
Leaf Retention:
Bloom Times: , ,
Flower Color: White, purple
Special Characteristics: ,

Additional Info

Habit: Clumping, erect, spreading
Height: 2-3'
Spread: 1-3'
Soil Conditions: High organic matter
Leaves: Fragrant green elliptical to lanceolate leaves with opposite arrangement
Flowers (or reproductive structures: Cymes of tiny white to lavender tubular flowers with purple spots
Fruit: Dry capsules that persist in winter.
USDA Hardiness Zone: 5-8
USDA Wetland Indicator Status in NC: FACW (Eastern Mountains and Piedmont), FACW (Atlantic and Gulf Coast Plains)
Pollination: Bees, butterflies, moths, and wasps.
Wildlife Connections: Attracts predatory insects that may benefit the garden. Host plant for Gray Hairstreak butterfly and Wavy-lined Emerald.
Propagation: Division, seed