Succeeds in full sun or light shade. Grows well in heavy clay soils. Prefers a slightly acid soil. Plants are usually annual, but are sometimes biennial. This species is occasionally cultivated commercially as a medicinal plant.

None known

Seed - sow spring or autumn in situ. The seed usually germinates within 2 weeks.

Meadows, fields, roadsides, waste places and open woods. Usually in dry soils.