Anyone have actual experience with horse manure around Azaleas and Rhododendrons? I don't have access to any horse manure, don't remember ever even fertilizing my azaleas. It just seemed odd that even a light use of manure would be harmful to those plants. I did a search and found several sites that did advise limited use of horse manure around many sensitive plants, but Azaleas and Rhododendrons were not even on those lists that I saw.