Koeleria altaica prefers well-drained soil and can tolerate dry conditions once established. Water moderately during the growing season, allowing the soil to dry out slightly between waterings.

Reduce watering significantly in autumn and winter to prevent root rot.

Prune Koeleria altaica in late winter or early spring before new growth emerges. Cut back the dead foliage from the previous year to about 5-10 cm from the ground.

This encourages fresh growth and maintains a tidy appearance.

Propagate Koeleria altaica by division in early spring or autumn. Carefully dig up the plant and divide the root ball into smaller sections, ensuring each section has healthy roots and shoots.

Replant immediately in well-draining soil.

Repotting is generally not necessary for established clumps of Koeleria altaica. If grown in containers, repot every 2-3 years in spring, or when the plant becomes root-bound. Use a well-draining potting mix.