Troubleshooting
Tree Peony problems — and how to fix them
Tree Peony (Paeonia suffruticosa) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Botrytis blight
Tree peonies are prone to grey mould in damp springs, blackening shoots and buds. Prune out infected wood, improve airflow, and clear fallen debris.
Graft suckering
Grafted plants may throw vigorous herbaceous suckers from the nurse rootstock. Remove these at the base so the woody scion is not overtaken.
Wind and rain damage
The very large blooms are easily battered. Site in a sheltered spot and consider light staking for top-heavy flowering stems.
Slow establishment
Tree peonies grow slowly and may take 3-5 years to flower well after planting; patience, not extra feed, is the remedy.
Prevent tree peony problems before they start
Most tree peony issues are care-mismatch, not bad luck. Dial in the basics:
Looking for tree peony in general rather than its problems? Read the full tree peony care guide — light, water, soil and feeding.
Tree Peony problems — FAQ
Why is my tree peony botrytis blight?
Tree peonies are prone to grey mould in damp springs, blackening shoots and buds. Prune out infected wood, improve airflow, and clear fallen debris.
Why is my tree peony graft suckering?
Grafted plants may throw vigorous herbaceous suckers from the nurse rootstock. Remove these at the base so the woody scion is not overtaken.
Why is my tree peony wind and rain damage?
The very large blooms are easily battered. Site in a sheltered spot and consider light staking for top-heavy flowering stems.
Why is my tree peony slow establishment?
Tree peonies grow slowly and may take 3-5 years to flower well after planting; patience, not extra feed, is the remedy.