Monarda didyma
Bee Balm, Oswego Tea, Bergamot, Horsemint, Scarlet Beebalm
Monarda didyma, commonly known as bee balm, is an herbaceous perennial native to eastern North America. It forms a clump with square stems and opposite aromatic leaves, reaching about 2–4 feet tall, with a minty scent when leaves are crushed. From mid to late summer, showy two-lipped tubular flowers appear in dense globe-like heads, typically red but also pink, lavender, purple, or white, attracting bees, hummingbirds, and butterflies.
Grown best in full sun to partial shade, it prefers evenly moist, well-drained soil and tolerates clay; space plants about 60–75 cm apart to ensure air circulation and reduce mildew. It spreads by rhizomes and self-seeding to form colonies and should be divided every 2–3 years; deadhead to prolong bloom. In landscapes, it suits borders, cottage and pollinator gardens, containers, and cut-flower arrangements; leaves and flowers are edible and have historic herb uses; deer- and rabbit-resistant. Hardiness zones 4–9.
Perennial
2-4 feet
24-36 inches
Zones 4-9
Ideally Full Sun; tolerates Partial Sun, Partial Shade, and Full Shade, with best growth from Full Sun to Full Shade.
Moist, well-drained, humus-rich loam with high organic matter and pH 6.0–7.0
Moist but well-drained soil.
6.0-7.0, slightly acidic to neutral
Red, Pink, Purple, White, Lavender/Blue
Summer (June to September)
Green (mid- to dark-green)
Green
Deciduous
Fast-growing, spreads rapidly via underground stolons and rhizomes.
Spring, Summer, and Fall
Seeds, Division, Cuttings
Bees, hummingbirds, butterflies, other pollinators, birds