Water moderately during the growing season, allowing the soil to dry slightly between waterings. Reduce watering significantly in winter, keeping the soil barely moist to prevent root rot.

Ensure good drainage to avoid waterlogged conditions, especially in containers.

Prune after flowering to maintain shape and prevent excessive seeding. Remove any dead, damaged, or crossing stems. Light annual pruning is usually sufficient.

For larger specimens, more substantial pruning can be done in late winter or early spring before new growth begins.

Propagate by seed sown in autumn or early spring, or by division of established clumps in spring. Seeds may require a period of cold stratification.

Division is the more reliable method for obtaining plants true to type and establishing them quickly.

Repot container-grown plants every 2-3 years in spring, or when root-bound. Use a well-draining potting mix. Choose a pot only slightly larger than the current one.

Handle the roots gently during repotting to minimize stress on the plant.