QuestionsHow to growTrees and ShrubsFrost damagecistus 0 Vote Up Vote Down Maria Judge asked 14 years ago my cistus plants have leaves only on the tips. The plants are approx 3 feet across. I would like to prune them hard back but should I wait?? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Probably frost damage. Leave them to recover at their own pace, or cut out if they do not.