What should I do with my Rhododendrons, Holly, and other broadleafed evergreens to protect them for the winter?
First, treat the soil with soil sulfur, or iron sulfate. Mulch the entire area under the branches with one to two inches of peat moss, then shredded bark mulch. The foliage should be sprayed with an anti-dessicant such as WILT-PRUF, when the temperatures remain above freezing for 24 hours. If the plant is in a very exposed area you might consider wrapping the plant in two layers of burlap. Make a cone shape to help shed snow. This should be done by mid-November.
