Water moderately during the growing season, allowing the soil to dry slightly between waterings. Reduce watering significantly in late summer and autumn to encourage dormancy.

Avoid waterlogged conditions, especially in winter, which can lead to root rot. Ensure good drainage.

Prune after flowering to remove spent flower stalks and any dead or damaged foliage. This tidies the plant and prevents seed formation, directing energy back into the rhizome.

Avoid cutting back healthy foliage too early, as it stores energy for the next season.

Propagate by dividing overcrowded rhizomes in late summer or early autumn, after the foliage has died back. Ensure each division has at least one growth bud and a healthy root system.

Replant divisions promptly in well-drained soil.

Repot only when necessary, typically when the rhizomes become crowded, usually every 3-5 years. Do this in late summer or early autumn.

Use a well-draining potting mix and ensure the rhizomes are planted at the correct depth, with the top just at or slightly below the soil surface.