Keep the soil consistently moist but not waterlogged, especially during active growth. Allow the top inch of soil to dry out slightly between waterings.

Reduce watering in winter when the plant is dormant to prevent root rot. Ensure good drainage to avoid standing water.

Deadhead spent flowers to encourage more blooms and maintain a tidy appearance. Cut back the plant in late fall or early spring to remove dead or damaged foliage and to shape it.

This also helps to prevent self-seeding if unwanted.

Propagate by division in early spring or fall. Carefully separate clumps of established plants, ensuring each division has roots and shoots. Replant divisions immediately into well-draining soil.

It can also be propagated by seed sown in fall or early spring.

Repot young plants annually or every two years in spring to provide fresh soil and more space. Mature plants can be repotted less frequently. Use a well-draining potting mix.

Ensure the new pot has adequate drainage holes to prevent waterlogging.