Water consistently to keep the soil moist but not waterlogged, especially during active growth. Reduce watering in winter.

Deadheading spent flowers can encourage further blooming and prevent self-seeding if desired. Light trimming can maintain a tidy appearance.

Easily grown from seed sown directly outdoors in spring or fall. Can also be propagated by cuttings taken in late spring or early summer.

As an annual, repotting is generally not applicable unless grown in a container and overwintered indoors, in which case repot in spring.