Dudley's Rush thrives in consistently moist conditions. Water frequently, ensuring the soil remains saturated but not waterlogged. It can tolerate shallow standing water, mimicking its natural boggy habitats.

Reduce watering slightly during dormancy, but never allow the soil to dry out completely.

Pruning is primarily for aesthetic purposes or to remove dead or damaged foliage. Trim back any yellowed or brown stems as needed. This can be done at any time of year.

Significant pruning is usually unnecessary for healthy plants and can be done in late winter or early spring before new growth begins.

Juncus dudleyi is typically propagated by division. In spring or fall, carefully dig up the plant and divide the root ball into smaller sections, each with several shoots.

Replant the divisions immediately into moist soil. It can also be grown from seed, sown in moist soil in a cool greenhouse.

Repotting is rarely necessary for Juncus dudleyi as it prefers to be slightly pot-bound. If the plant becomes overcrowded or outgrows its container, repot it in spring.

Choose a container that is only slightly larger than the current one, and ensure it has good drainage holes.