How to prune soft-stem bulrush

Late autumn after die-back or early spring before new growth. Cut all stems to just above the waterline or soil surface using loppers or heavy shears. Bag and remove cuttings to prevent decaying material from enriching the water. Divide overcrowded clumps in spring.

Annual cut-back; divide clumps every 2–4 years as needed. Soft-stem Bulrush is a vigorous marginal aquatic that benefits from an annual cut-back. Remove all dead and brown stems in late autumn or early spring before new growth appears. This keeps the planting open, promotes healthy regrowth, and reduces decaying organic matter in the water.

Cut all stems to just above the waterline or soil surface using loppers or heavy shears. Bag and remove cuttings to prevent decaying material from enriching the water. Divide overcrowded clumps in spring.