Never prune peonies when you deadhead them after flowering in summer as it will weaken the plant or shrub. Pruning too hard Tree peonies don't take kindly to hard pruning and it can set back their flowering (Image credit: Future/Ruth Hayes) Heavy-handed pruning may work well for some pl...
Improper pruning or pruning at the wrong time of year can result in misshapened plants, reduced flowering or plants that are more likely to be damaged by insects, diseases or winter cold. It is important to learn about the three T’s of proper pruning: t