Powdery thalia thrives in consistently moist soil. Water regularly, especially during warmer months and when grown in containers.

Allow the top few centimeters of soil to dry slightly between waterings, but avoid letting the plant sit in waterlogged conditions, which can lead to root rot. Reduce watering in cooler periods.

Prune powdery thalia to remove dead, damaged, or faded flower stalks and leaves. Cut back old foliage at the end of the growing season or in early spring before new growth emerges.

This maintains a tidy appearance and encourages robust new growth for the upcoming season.

Propagate powdery thalia by division. In spring, carefully divide overgrown clumps, ensuring each section has healthy roots and shoots. Replant divisions immediately into well-draining soil.

Water thoroughly after planting and maintain consistent moisture until new growth is established.

Repot powdery thalia when it becomes root-bound, typically every 2-3 years. Spring is the ideal time for repotting. Choose a pot that is slightly larger than the current one and use a well-draining potting mix.

Water thoroughly after repotting to help settle the soil.