Juncus conglomeratus thrives in consistently moist soil. Water regularly, ensuring the pot is always sitting in a shallow tray of water, especially during warmer months.

Avoid letting the soil dry out completely, as this can stress the plant. Reduce watering slightly in winter, but maintain damp conditions.

Prune in late winter or early spring before new growth appears. Cut back any dead, damaged, or yellowed stems close to the base. This tidies the plant and encourages vigorous new shoots.

Remove any spent flower stems to prevent unwanted seeding.

Juncus conglomeratus is easily propagated by division. In spring, carefully dig up the plant and divide the root ball into smaller sections, ensuring each section has healthy shoots and roots.

Replant divisions immediately into moist soil.

Repot every 2-3 years, or when the plant becomes root-bound. Spring is the ideal time. Choose a pot that is only slightly larger than the current one. Use a well-draining, loam-based potting mix.

Ensure the new pot has drainage holes to prevent waterlogging.