Juncus grisebachii thrives in consistently moist soil. Water regularly, ensuring the soil never dries out completely. It tolerates waterlogged conditions and can be grown in shallow water features.

Reduce watering slightly during dormant periods but maintain soil moisture.

Pruning is primarily for aesthetic purposes and to remove dead or damaged foliage. Cut back old stems to the base as needed, typically in late winter or early spring before new growth emerges.

This encourages vigorous new growth and maintains the plant's tidy appearance.

Propagation is typically achieved through division of established clumps. In spring, carefully divide the rhizomes into smaller sections, ensuring each piece has roots and shoots.

Replant divisions immediately in moist soil or water.

Juncus grisebachii can be grown in containers. Repotting is generally infrequent, as the plant tolerates being slightly pot-bound.

If repotting becomes necessary, do so in spring before active growth begins, using a well-draining, moist potting mix.