How to prune caltha palustris 'flore pleno'

After flowering in late spring to early summer. Cut all stems and leaves back to just above the crown once the double flowers fade and foliage deteriorates. Clear debris from the planting site. Divide congested crowns every 2–3 years in early spring for best flowering.

Annually after flowering. Caltha palustris 'Flore Pleno' (double marsh marigold) follows the same pruning approach as the species. Cut foliage back hard after flowering ends in late spring when leaves start to yellow and look tired. This encourages a fresh flush of growth. Remove any dead or decaying leaves promptly to deter rot.

Cut all stems and leaves back to just above the crown once the double flowers fade and foliage deteriorates. Clear debris from the planting site. Divide congested crowns every 2–3 years in early spring for best flowering.