Long-lived and spectacular, tree peonies (or Paeonia suffruticosa) require very little maintenance beyond deadheading. Simply removing the spent blooms will encourage your hardy shrubs to produce hundreds of large, exotic flowers every spring. Should your mature shrub outgrow its space or become leggy and unproductive, here are Mandy Bradshaw's expert tips to help you prune it correctly.
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Tree peonies can take time to become well established so new plants are best left untouched for the first couple of years. After that, they require very little pruning beyond deadheading and the removal of any dead wood. Use a pruning saw or loppers and a sharp pair of secateurs.
In summer, deadhead the flowering shoots once the flowers have faded. If you want to collect seed, leave some of the faded flowers until the autumn.
As with many long-lived shrubs, tree peonies can outgrow their allotted space and old wood may become leggy or unproductive. If this is the case, careful pruning can reduce the size and reinvigorate your plant.
The best time to prune a tree peony is spring, before new growth starts, as this will stimulate the shrub to grow back strongly. However, this does mean sacrificing some of that year’s flowers. If you don’t want to lose any flowers, prune your shrub in the autumn, but be prepared for regrowth to be slower.
Keep your mature tree peony looking its best with these few simple tips:
We hope these tips will keep your tree peony in excellent shape so that it continues to give you a spectacular spring display for many years to come.
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