Water consistently, especially during dry periods, to maintain evenly moist soil. Avoid waterlogging, as this can lead to root rot. Allow the top inch of soil to dry slightly between waterings once established.

Reduce watering in fall and winter when the plant is dormant.

Deadhead spent flower stalks to encourage reblooming and prevent self-seeding if unwanted. In late fall or early spring, cut back the old foliage to make way for new growth.

Remove any dead or damaged stems at any time of year.

Propagate from seed sown in fall or early spring. Cold stratification may improve germination rates. Division of established clumps in early spring or fall is also an effective method for propagation.

This plant generally prefers to be left undisturbed. If repotting is necessary due to container size or poor soil, do so in early spring before new growth begins. Handle the roots gently to minimize transplant shock.