All plants can be affected by oedema a condition brought on by overwatering or high humidity. It can be particularly troublesome on cacti, camellias, eucalyptus, fuchsias, pelargonium, succulents and vines. However, there are steps you can take to avoid this issue.
Scientific name Oedema
Plants affected Various; including cacti, camellias, eucalyptus, fuchsia, orchids, pelargonium, succulents and vines
Main causes Excessively high moisture levels in soil or air
Timing All year
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.