Pruning guide
How to prune lemna minor
More lemna minor care
Pruning lemna minor — FAQ
When should I prune lemna minor?
As needed throughout the growing season (spring–autumn). Skim excess duckweed from the water surface using a pond net or fine-mesh skimmer. Remove and compost or dispose of the material away from the water. Never cut or shred in the pond — each fragment can regenerate.
How often does lemna minor need pruning?
As needed (often weekly in warm weather). Lemna minor (common duckweed) is a free-floating aquatic with no stems or leaves to prune. Management consists entirely of physically removing excess plants by skimming them from the water surface — it reproduces extremely rapidly and can blanket a pond within days. No pruning tools needed; a pond net or your hands are all it takes.
How do you prune lemna minor?
Skim excess duckweed from the water surface using a pond net or fine-mesh skimmer. Remove and compost or dispose of the material away from the water. Never cut or shred in the pond — each fragment can regenerate.