Bee Balm Companion Plants
Flower70 days to maturity
Bee balm is a clump-forming North American perennial in the mint family, named for the shaggy crowns of red, pink, or purple flowers that draw bees, butterflies, and hummingbirds all summer. Like its mint relatives it spreads steadily by underground rhizomes and can colonize a bed if left unchecked. Its signature weakness is powdery mildew, which coats the foliage in white during humid, crowded conditions.
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Companion Planting Strategy for Bee Balm
Bee balm's real value as a companion is as a pollinator and beneficial-insect magnet, so it is planted near fruiting crops that depend on good pollination. The strategy is to position it where its flowers can pull bees and predatory insects into the vegetable garden while giving it enough airflow to fend off mildew.
Best Companion Plants for Bee Balm
These plants grow well alongside Bee Balm — providing pest control, attracting pollinators, or making better use of your garden space.
Bee balm draws in bees and beneficial predators that improve tomato fruit set and help keep pest populations in check around the tomato patch.
Just as with tomatoes, bee balm's strong pull on pollinators and beneficial insects boosts pepper pollination and provides natural pest control.
How to Grow Bee Balm
- Botanical name
- Monarda didyma
- Family
- Mint (Lamiaceae)
- Sun
- Full sun to partial shade, 6+ hours, with afternoon shade welcome in hot climates
- Water
- Consistent moisture, about 1 inch per week; prefers evenly moist soil and dislikes drying out
- Soil
- Rich, moist, well-draining soil, pH 6.0-7.0
- Spacing
- 18-24 inches apart to maintain airflow and reduce mildew
- Planting depth
- Surface sow seed since it needs light to germinate, or set divisions and transplants at the crown level
- Germination
- 10-21 days at 60-70F
- Days to maturity
- Blooms in midsummer; divisions flower the first year, seed-grown plants usually the second
- When to plant
- Plant in spring or early fall; hardy perennial in zones 3-9
- Harvest
- Snip flowers and leaves for tea while in bloom, and deadhead spent flowers to encourage a longer display
Common Bee Balm Problems
Powdery mildew (white powdery coating on leaves, very common)
Space plants for airflow, grow in full sun, water at the base, thin crowded stems, and choose resistant cultivars such as Jacob Cline or Marshall's Delight.
Aggressive spreading by rhizomes
Divide clumps every 2-3 years, pull up wandering runners, or plant in a buried container or contained bed to keep it from overtaking neighbors.
Rust and leaf spot (orange or brown spots on foliage)
Remove and destroy infected leaves, improve air circulation, avoid overhead watering, and clean up debris at the end of the season.
Few flowers or floppy, leggy growth
Give it full sun, divide overcrowded clumps to reinvigorate them, and avoid excess nitrogen, which promotes leaves at the expense of blooms.
Bee Balm Companion Planting FAQ
What are the best companion plants for bee balm?
Tomatoes and peppers are excellent companions for bee balm because the flowers pull in the pollinators and beneficial insects those crops rely on. It also pairs well with other pollinator-friendly perennials like echinacea, phlox, and rudbeckia, just give everything enough room for airflow to limit powdery mildew.
What should you not plant with bee balm?
Bee balm has no strong plant antagonists, but you should avoid crowding it into damp, shady, poorly ventilated spots, since those conditions invite the powdery mildew it is prone to. Be mindful of its spreading rhizomes near small or delicate plants that it could quickly overrun.
Does bee balm come back every year?
Yes, bee balm is a hardy perennial that returns each year in zones 3-9 and steadily expands by underground rhizomes. Dividing the clumps every two to three years keeps it vigorous, controls its spread, and gives you new plants for elsewhere in the garden.
How do you keep bee balm from getting powdery mildew?
Plant bee balm in full sun with 18-24 inches between plants for good air circulation, water at the base rather than overhead, and thin out crowded stems in spring. Choosing mildew-resistant varieties like Jacob Cline or Marshall's Delight makes the biggest difference.
More flower companions
Plan Your Bee Balm Garden
Use our interactive tools to design the perfect garden with Bee Balm and its companions.