That is if you don't prune them too early. Graham Smith MCIHort, a gardening expert from LBS Horticulture says, "Spring flowering shrubs should only be pruned after they have finished flowering, not ...
However, plants that flower in spring should be left alone just now. Hamid said: "In January, you should avoid pruning spring-flowering shrubs like forsythia, lilac and flowering currant. "For example ...