QuestionsHow to growTrees and ShrubsPruningPruning Potentilla 0 Vote Up Vote Down Carmel Quirke asked 13 years ago Is it too late to cut back Potentillas now? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 6 years ago Potentilla can be pruned in February or March as it flowers on the new growth this summer.