Pruning guide
How to prune pontederia cordata
More pontederia cordata care
Pruning pontederia cordata — FAQ
When should I prune pontederia cordata?
Deadhead through summer; full cutback in late autumn after first hard frost. Snap or cut spent flower spikes at the stem base to extend the blooming season. After frost, use loppers or shears to cut all growth to 5–10 cm above the crown. Remove cuttings from the water.
How often does pontederia cordata need pruning?
Deadhead every few weeks in summer; hard cutback once per year in autumn. Pickerelweed is a low-maintenance marginal that mainly needs tidying rather than hard pruning. Remove faded flower spikes to encourage repeat blooming through summer. Cut all stems and foliage back close to the water or soil surface in late autumn after frost blackens the leaves, reducing debris that can foul the water over winter.
How do you prune pontederia cordata?
Snap or cut spent flower spikes at the stem base to extend the blooming season. After frost, use loppers or shears to cut all growth to 5–10 cm above the crown. Remove cuttings from the water.