2025 Perennial Plant of the Year

Pycnanthemum muticum

Mountain Mint-Short Toothed

Photo Credit: Olbrich Gardens

Photo Credit: Susan Martin


Pycnanthemum muticum

Mountain Mint-Short Toothed

This popular wildflower is one of the very best for pollinators, supporting a diverse group of native bees and butterflies. It is showiest in late summer when the entire plant appears to be covered in silver dust due to the showy bracts. Its dark green, mint-scented foliage spreads slowly by rhizomes but is easily controlled. Tolerates clay soil, heat and mild drought.

Plant Details

  • Zone: 4 - 8
  • Height: 2-3
  • Spread: 2-3
  • Exposure: Full Sun, Part Shade
  • Soil Moisture: High Water Needs, Low Water Needs, Moderate Water Needs
  • Drought tolerant: Yes, Once Established
  • Bloom time: Early Fall, Late Summer, Midsummer
  • Foliage Color: Green Shades, Silver-Gray Shades
  • Flower Color: White Shades
  • Fragrant: Yes
  • Good Cut Flower: No
  • Native: Native Species
  • Deer resistant: Yes
  • Rabbit resistant: Yes
  • Bee-friendly: Yes
  • Attracts butterflies: Yes
  • Attracts hummingbirds: No
  • Groundcover: No
  • Roy Diblik Favorite: No

Plant Details

  • Zone: 4 - 8
  • Height: 2-3
  • Spread: 2-3
  • Exposure: Full Sun, Part Shade
  • Soil Moisture: High Water Needs, Low Water Needs, Moderate Water Needs
  • Drought tolerant: Yes, Once Established
  • Bloom time: Early Fall, Late Summer, Midsummer
  • Foliage Color: Green Shades, Silver-Gray Shades
  • Flower Color: White Shades
  • Fragrant: Yes
  • Good Cut Flower: No
  • Native: Native Species
  • Bee-friendly: Yes
  • Deer resistant: Yes
  • Rabbit resistant: Yes
  • Attracts butterflies: Yes
  • Attracts hummingbirds: No
  • Groundcover: No
  • Roy Diblik Favorite: No

Grower Information

  • PowerPlug Size(s): 32s
  • Optimal Planting Time: Late Summer-Fall, Spring
  • Retail Sales Window: Fall, Summer
  • Moisture in Production: Average, Consistent
  • Requires Shade in Production: No
  • Vernalization Required for Bloom: No
  • Vernalization Beneficial: Yes