QuestionsHow to growFlowersBorder Perennial Flowerspeony 0 Vote Up Vote Down Alan Stenson asked 14 years ago My peony has finished blooming – its early August- and i wonder if it should be tidied up/pruned or should i leave it? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Leave the peony untouched to build up its roots and buds for next year. Only when the foliage yellows, take it away.