Spacefarmer. Rhodies can be cut down to just a few inches from the ground. You will lose blooms for one year and then they will bloom on renewed growth. I inherited several growing on Whidbey and they were totally neglected for years and ugly - so I cut them to about one foot - my neighbor who worked at the Meerkerk Garden www.meerkerkgardens.org/ said that they would cut them to just inches - but I had almost finished the project and left them as cut. They came right back and were absolutely gorgeous.