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Pruning guide

How to prune watermint

Best time
Throughout the growing season; hard cut-back in autumn
How often
Two to three times during the growing season; once hard in autumn
Technique
Cut all stems back to 2–3 inches above soil or water surface with shears or scissors. This stimulates a flush of tender new growth. In autumn, cut back to just above the crown before water temperatures drop. Divide crowded clumps every 2–3 years.

More watermint care

Pruning watermint — FAQ

When should I prune watermint?

Throughout the growing season; hard cut-back in autumn. Cut all stems back to 2–3 inches above soil or water surface with shears or scissors. This stimulates a flush of tender new growth. In autumn, cut back to just above the crown before water temperatures drop. Divide crowded clumps every 2–3 years.

How often does watermint need pruning?

Two to three times during the growing season; once hard in autumn. Watermint is vigorous and benefits from regular cutting back to prevent it overwhelming other plants. Cut stems back to 2–3 inches above the waterline or soil surface two or three times per season to keep growth compact and fresh. Remove flowering stems promptly if leaf production is the goal, as flowering reduces leaf quality.

How do you prune watermint?

Cut all stems back to 2–3 inches above soil or water surface with shears or scissors. This stimulates a flush of tender new growth. In autumn, cut back to just above the crown before water temperatures drop. Divide crowded clumps every 2–3 years.