Water regularly, especially during dry periods, but avoid waterlogging. Allow the top few centimeters of soil to dry out between waterings. In pots, ensure good drainage.

Reduce watering in winter when the plant is less active. Consistent moisture promotes healthy growth and flowering.

Prune to remove spent flower stalks after flowering to encourage a tidier appearance and potentially a second bloom. Remove any dead or damaged foliage as needed throughout the growing season.

Light trimming can help maintain shape, but heavy pruning is generally not required.

Propagate by division in early spring or autumn. Carefully separate the root ball into smaller sections, ensuring each has healthy roots and shoots. Replant immediately into well-draining soil.

Sow seeds in autumn or early spring in a cold frame or unheated greenhouse.

Repot young plants annually or every two years in spring to ensure they have adequate space for root growth.

Mature plants can be left in place for longer periods but may benefit from occasional repotting to refresh the soil. Use a well-draining potting mix.