Water consistently during the growing season, ensuring good drainage to prevent root rot. Allow the top inch of soil to dry out between waterings. Reduce watering significantly during dormancy.

Remove spent flower stalks after blooming to encourage reblooming and maintain a tidy appearance. Trim back dead or damaged foliage in late fall or early spring before new growth emerges. Divide clumps every few years.

Easily propagated by division of rhizomes in late summer or early fall. Rhizomes can also be divided and replanted in spring. Seeds are rarely used for propagation due to variability.

If grown in pots, repot every 2-3 years in spring or fall. Use a well-draining potting mix. Ensure the rhizomes are just at or slightly below the soil surface. Water lightly after repotting.