The rhododendron is one of the most eyecatching shrubs in the home landscape. Being popular shrubs, the topic of how to trim a rhododendron bush is a frequently asked question. Find pruning tips in this article.
3 Ways to Prune Rhododendrons: Here's how to maintain, shape, or rejuvenate rhododendrons. Learn how to do it right, here http://www.finegardening.com/how-to/articles/three-ways-prune-rhododendrons.aspx
rhododendron rejuvenation--- Snip at the base of the old flower trusses to keep the plant's energy focused on producing growth rather than seed. Also remove dead or diseased parts of the shrub--follow the branch back to healthy wood and make a cut there.