How to prune unbranched bur-reed

Late autumn or early spring for annual cut-back; deadhead after flowering to limit seed spread. Cut stems to just above the waterline or to ground level at the margin using sturdy shears or loppers. Remove seed heads before they ripen if self-seeding is a concern.

Once annually in late autumn or early spring; deadhead as needed. Unbranched Bur-reed is a robust marginal aquatic that needs little pruning. Cut back dead or frost-damaged stems to water level in late autumn or early spring before new growth starts. Remove spent flower heads if you want to prevent self-seeding. Containment of spread is the main management task.

Cut stems to just above the waterline or to ground level at the margin using sturdy shears or loppers. Remove seed heads before they ripen if self-seeding is a concern.