key growing information

Growing Bee Balm (Wild Bergmot/Monarda fistulosa) From Seed

Growing bee balm (wild bergamot, Monarda fistulosa) from seed: sowing, transplanting, spacing, sun and soil, preventing powdery mildew, and harvesting leaves.

By Hensley’s Seed Co. September 3, 2026

Bee Balm (Wild Bergamot/Monarda fistulosa) - Key Growing Information

Bee balm flowers attract and sustain pollinating insects in the garden.

DAYS TO GERMINATION:

Expect seedlings in 7–14 days at 60–70°F (16–21°C).

SOWING:

Starting transplants is recommended. Sow in flatsand cover the seed only barely. Move seedlings into their own pots once they show true leaves, and plant them outdoors in spring or summer, 6–8 weeks after sowing, 12–18" apart. To sow outdoors, plant any time from early spring until about 8 weeks before your first fall frost, either directly in the bed or in a cold frame for transplanting once seedlings are 3–4" tall. Space seed about an inch apart in rows 18" apart, then thin to 12–18".

DISEASE:

Powdery mildew is the main problem with bee balm, and humidity and plant stress, including dry spells, make it worse. To keep it in check: water the soil steadily rather than wetting the leaves, space plants widely so air moves between them, clear away infected foliage so the fungus can't overwinter, and divide clumps roughly every three years, discarding the woody center and replanting the young outer shoots.

LIGHT PREFERENCE:

Full sun to partial shade.SOIL REQUIREMENTS: Rich, moist, slightly acidic soil.

PLANT HEIGHT:

36-48".

PLANT SPACING:

12–18" apart.

HARDINESS ZONES:

Hardy in Zones 3–9.

HARVEST:

You can pick leaves in the first year, and the harvest grows each year as the clumps get bigger. Plants generally don't bloom until their second season. Clumps that are 3–4 years old can be divided to make new plants.

SCIENTIFIC NAME:

Monarda fistulosa