We recently moved into a home and have been working on weeding and rejuvenating the backyard. We discovered some rhododendron plants that had been covered with some ivy, and needed to be cut back to install a fence. The plants are quite leggy, with leaves only growing at the ends of long branches. How can we revive those plants? Can they be pruned way back? Thank!
If you want to see blooms, prune after they flower next season. Then you can prune back to about halfway. If you want to renovate hard you can prune back to a foot. It will take a several seasons for them to put out some growth.