|Should I peel off the moss that is on the branches of many of my ornamental shrubs (like rhodies, azaelas, lilacs, etc.)?
|Algae or moss growth on the branches of woody ornamentals is quite common in the Pacific Northwest and you don't need to remove it, although you can if you wish. I peel it off when it annoys me, or kill it during the winter months with a lime/sulfur spray (such as you would use for apple trees). Don't use this on evergreens such as your rhodies, though. The lime/sulfur will burn the leaves. Just use it on the bare wood of your lilacs and other deciduous shrubs. The lime/sulfur will kill the algae and it will weather away in a few years. It might be simpler just to leave it alone.|