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Pycnanthemum virginianum (Virginia Mountain Mint)

Virginia Mountain Mint, Koellia virginiana

Pycnanthemum virginianum, Virginia Mountain Mint, Koellia virginiana, White flowers
Pycnanthemum virginianum, Virginia Mountain Mint, Koellia virginiana, White flowers
Pycnanthemum virginianum, Virginia Mountain Mint, Koellia virginiana, White flowers

Delicate in both flower and leaf, Pycnanthemum virginianum (Virginia Mountain Mint) is an erect, many-branched, aromatic perennial adorned with very narrow, toothless, gray-green leaves. The leaves exude a pleasant minty fragrance when crushed. Blooming for about one month in mid to late summer, an abundance of small, white flowers, dotted with lavender, appear in dense flattened clusters atop the stems. Each cluster has 4 or more flowers, some as many as 50. Many insects are strongly attracted to the flowers, including bees, wasps, flies, small butterflies, and beetles. The root system produces rhizomes, which spread outward with daunting vigor, forming small colonies. Vigorous and durable, Virginia Mountain Mint is a good choice for meadows, wildlife gardens, woodland edges where it can roam freely.

  • Grows up to 24-36 in. tall (60-90 cm) and 12-18 in. wide (30-45 cm).
  • Thrives in full sun to part shade in moist to average, well-drained soils. This plant is not fussy about soils and performs well in loam, sand, clay, or gravel.
  • Great for borders, herb gardens, prairies and meadows, native plant gardens, naturalized areas or along ponds and streams.
  • No serious pest or disease issues.
  • Propagate by dividing plants in spring or taking tip cuttings in early summer.
  • Native to eastern North America.

Requirements

Hardiness 3 - 7
Plant Type Perennials
Plant Family Lamiaceae
Common names Virginia Mountain Mint, Mountain Mint
Exposure Full Sun
Season of Interest Summer (Mid, Late)
Height 2' - 3'
(60cm - 90cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 18" - 24"
(50cm - 60cm)
Maintenance Low
Water Needs Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Fragrant, Showy
Native Plants United States, New York, Massachusetts, New Hampshire, New Jersey, Maine, Maryland, Delaware, Rhode Island, Pennsylvania, Connecticut, Vermont, Southwest, Southeast, Midwest, Northeast, North Dakota, Ohio, Wisconsin, Illinois, Indiana, Iowa, Kansas, Michigan, South Dakota, Minnesota, Missouri, Nebraska, Alabama, Arkansas, Georgia, Kentucky, Mississippi, North Carolina, West Virginia, Tennessee, Virginia, Oklahoma
Attracts Bees, Butterflies
Garden Uses Beds And Borders
Garden Styles Informal and Cottage, Prairie and Meadow
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Recommended Companion Plants

Schizachyrium scoparium (Little Bluestem)
Oligoneuron rigidum (Stiff Goldenrod)
Sporobolus heterolepis (Prairie Dropseed)
Echinacea paradoxa (Yellow Coneflower)
Fragaria vesca (Wild Strawberry)
Panicum virgatum (Switch Grass)
Rudbeckia hirta (Black-Eyed Susan)
Zizia aurea (Golden Alexanders)
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 3 - 7
Plant Type Perennials
Plant Family Lamiaceae
Common names Virginia Mountain Mint, Mountain Mint
Exposure Full Sun
Season of Interest Summer (Mid, Late)
Height 2' - 3'
(60cm - 90cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 18" - 24"
(50cm - 60cm)
Maintenance Low
Water Needs Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Fragrant, Showy
Native Plants United States, New York, Massachusetts, New Hampshire, New Jersey, Maine, Maryland, Delaware, Rhode Island, Pennsylvania, Connecticut, Vermont, Southwest, Southeast, Midwest, Northeast, North Dakota, Ohio, Wisconsin, Illinois, Indiana, Iowa, Kansas, Michigan, South Dakota, Minnesota, Missouri, Nebraska, Alabama, Arkansas, Georgia, Kentucky, Mississippi, North Carolina, West Virginia, Tennessee, Virginia, Oklahoma
Attracts Bees, Butterflies
Garden Uses Beds And Borders
Garden Styles Informal and Cottage, Prairie and Meadow
How Many Plants
Do I Need?

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