Calamagrostis angustifolia prefers consistently moist soil, especially during its establishment phase. Water deeply and regularly, allowing the top few centimeters of soil to dry out slightly between waterings.

Reduce watering in winter as growth slows, but do not let the soil become completely dry. Ensure good drainage to prevent root rot.

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

This tidies the plant, encourages vigorous new growth, and prevents the buildup of old, decaying material.

Propagation is best done by division in early spring or autumn. Dig up the plant and carefully divide the root ball into smaller sections, ensuring each section has roots and shoots.

Replant the divisions immediately into well-prepared soil and water thoroughly.

Calamagrostis angustifolia is typically grown in the ground and does not require frequent repotting. If grown in a container, repot every 2-3 years in spring to refresh the soil and provide more space.

Choose a container that is only slightly larger than the current root ball.