
A lilac-flowered bee balm of North American prairies; its long corolla mainly benefits bumblebees and wild bees, giving honey bees only modest nectar.
A perennial with a thyme-like scent from the prairies, woodland edges and dry meadows of North America; in Europe it is grown as an ornamental and aromatic plant. The tube of its lilac-pink flowers is long, so most of the nectar is left to bumblebees, long-tongued wild bees and butterflies. Honey bees take some nectar on hot days when the nectar level rises, and through holes made by bumblebees.
It flowers for 4-6 weeks from July to August. It is fairly tolerant of dry, limy soils; in hot, humid weather powdery mildew is common on the leaves.
There is no monofloral honey; its contribution to honey production is limited.
Sowing it on its own for honey bees is not recommended. It is valuable in bee gardens that support wild pollinators; for honey bees, Agastache foeniculum or Hyssopus officinalis, which flower at the same time, are more productive choices.