How to Prune giant marsh marigold?
No pruning required, though the stems may be cut back after flowering
giant marsh marigold · Pruning
giant marsh marigold · Caltha polypetala
Plant from spring to autumn in full sun, in deep, rich organic soil, at the water's edge or in shallow water up to 15cm deep; mulch annually to conserve moisture
Watering: Keep soil consistently moist to wet, never allowing roots to drySunlight: Full sunInformation to be completed