An easily grown plant, succeeding in a moist loamy soil. Grows well in heavy clay soils. Grows well in marshy soil and in shallow water in pond margins. Prefers a shady position but also succeeds in full sun. Plants are hardy to at least -25°c. Most species in this genus seem to be immune to the predations of rabbits. A very ornamental plant.

A tea is made from the leaves and flowers.

Seed - sow spring or autumn in a cold frame. This species rarely produces seed in Britain. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. Division in spring or autumn. Larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.

Damp situations in pastures and by the sides of streams, avoiding acid soils.