Water regularly, keeping the soil consistently moist but not waterlogged. Allow the top inch of soil to dry slightly between waterings.

Reduce watering during winter dormancy, but do not let the soil become completely dry. Good drainage is essential to prevent root rot.

Minimal pruning is needed. Remove dead or damaged stems at any time. If the plant becomes leggy or overgrown, you can cut it back by one-third in late spring or early summer after flowering to encourage bushier growth.

Deadheading is not typically necessary.

Propagate by division in early spring or autumn. Carefully dig up the plant and separate the rhizomatous roots into sections, ensuring each section has at least one bud.

Replant divisions immediately into well-prepared soil. Seeds can also be sown in autumn outdoors.

This perennial typically does not require frequent repotting. If grown in a container, repot every 2-3 years in spring when the plant is dormant. Choose a pot only slightly larger than the current one.

Use a well-draining potting mix amended with organic matter.