How to prune lance-leaved water plantain

Deadhead flower spikes as soon as blooms fade (summer); cut back dead foliage in late autumn. Snip flower stems at their base once flowers finish. In autumn, cut all foliage back to the crown or water surface. Use gloves — sap can irritate skin in some individuals.

Deadhead after flowering; one full cut-back in autumn. Lance-leaved Water Plantain needs minimal pruning. Deadhead spent flower spikes after flowering to prevent prolific self-seeding, as it can become invasive in some wetland settings. Remove yellowing or dying leaves through the season. Cut back all foliage to the crown in late autumn once it dies back naturally.

Snip flower stems at their base once flowers finish. In autumn, cut all foliage back to the crown or water surface. Use gloves — sap can irritate skin in some individuals.