Articles

Rain Garden Plants: Bee Balm

An informative guide with details and pictures of bee balm (Monarda didyma).
Updated:
June 23, 2026

Bee balm is a showy perennial in the mint family (Lamiaceae). Individual scarlet-red tubular flowers appear in a 3- to 4-inch cluster atop a square stem. Opposite, ovate-shaped leaves have serrated margins. Leaves are dark green above and have a minty aroma. Attracts hummingbirds, butterflies, and bees. Susceptible to powdery mildew.

  • Height: 36 to 60 inches
  • Bloom color: Red, pink
  • Bloom time: June to July
  • Hardiness zone: 3 to 9
  • Salt tolerance: Not tolerant
  • Spreading habit: Can colonize by rhizomes
red flower in summer
Flower. Photo by Jodi Sulpizio, Penn State Extension
Red flowers.
Flowers. Photo by Jodi Sulpizio, Penn State Extension
New plant growth in spring.
New growth in spring. Photo by Jodi Sulpizio, Penn State Extension

Site Conditions

  • Sun: Sun/partial shade
  • Soil: Acidic (pH < 6.8), rich, moist
  • Hydrologic zone: Moist
Monarda leaf
Leaf. Photo by Jodi Sulpizio, Penn State Extension
Seed in fall.
Seed. Photo by Jodi Sulpizio, Penn State Extension

Lady Bird Johnson Wildflower Center

Prepared by Jessica Chou, Jodi Sulpizio, and Constance Schmotzer.