Water consistently during the growing season, allowing the soil to dry out slightly between waterings. Reduce watering significantly in winter, providing just enough to prevent the crown from drying.

Ensure good drainage to prevent root rot, especially in container-grown plants.

Remove spent flower stalks promptly after flowering to encourage further blooming and maintain a tidy appearance.

In late winter or early spring, before new growth emerges, cut back the old, dead foliage to about 10-15 cm from the ground. This tidies the plant and prevents disease.

Propagate by division in early spring or autumn. Carefully dig up established clumps and divide them into smaller sections, ensuring each section has a healthy crown and roots.

Replant divisions immediately into well-prepared soil, watering them in well. Seeds can be sown in autumn or spring.

Repot container-grown plants every 2-3 years, or when they become root-bound. This is best done in early spring. Use a well-draining potting mix, typically a standard potting soil with added grit or perlite.

Ensure the new pot is only slightly larger than the previous one.