Water consistently when the top 2-3 cm of soil feels dry. Achillea asiatica prefers well-draining soil and can tolerate some drought once established. Avoid overwatering, which can lead to root rot.

Reduce watering frequency in cooler months.

Deadhead spent flowers regularly to encourage more blooms and maintain a tidy appearance. Cut back the plant by about one-third to one-half after flowering to promote bushier growth and prevent it from becoming leggy.

Prune in late autumn or early spring.

Achillea asiatica is easily propagated by division of established clumps in early spring or autumn. Seeds can also be sown in early spring, either indoors or directly outdoors after the last frost.

Cuttings can be taken in late spring or early summer.

Repotting is rarely necessary for Achillea asiatica, as it prefers to be slightly root-bound. If grown in a container, repot every 2-3 years in spring to refresh the soil and manage its size.

Use a well-draining potting mix.