9 Frequent Hydrangea Questions Answered How to change hydrangea color, when to prune and more answers to common questions about hydrangeas. Read More PRUNING, SHRUBS, MAINTENANCENew GardenJune 5, 2014HYDRANGEAS, MOPHEAD HYDRANGEA, HYDRANGEA COLOR, HYDRANGEA PRUNING, COMPANION PLANTS, SPR16 Comments