QuestionsHow to growSummer BeddingFlowersPruning 0 Vote Up Vote Down darren clinton asked 16 years ago Gerry, as were in Autumn, I have a lot of geraniums in the green house, starting to develope mould. Do and should these be pruned back and if so how?Also, should I prune fushia and Rose trees now? If so, how far back? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Ventilate the greenhouse and cut back the geranium stems to about half-length. Fuchsia can be pruned in spring and roses from November on wards.Â