Water Artemisia douglasiana thoroughly when the top 2-3 cm of soil feels dry. This plant prefers well-draining soil and is drought-tolerant once established. Avoid overwatering, as it can lead to root rot.

Reduce watering frequency in cooler months.

Prune back Artemisia douglasiana in late spring or early summer to maintain a compact shape and prevent it from becoming too leggy. You can also deadhead spent flowers to encourage reblooming.

A harder prune in late fall or early spring can rejuvenate the plant.

Propagate Artemisia douglasiana from stem cuttings taken in late spring or early summer. Insert cuttings into a well-draining potting mix and keep them moist.

Alternatively, it can be propagated by division of established clumps in early spring. Seeds can also be sown in spring.

Repot Artemisia douglasiana every 2-3 years, or when it becomes root-bound. Choose a pot with good drainage. It prefers to be slightly underpotted, so a pot only slightly larger than the current one is ideal.

Use a well-draining potting mix.