The fully-developed buds of double flowers, such as roses and peonies, sometimes fail to open. This problem is known as ‘balling’ and usually occurs in wet weather conditions. However, it is possible to rescue some of the affected flowers.
Plants affected Roses, peonies and camellias
Main symptoms Flower buds turn brown and fail to open
Main causes Wet, shady conditions
Timing Spring and summer
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.