We need to have our roof cleaned, and they want to use Copper sulfate and Oxyclean to do this. Will the runoff of this combination hurt our plants around the house?
Certified GKH Gardening Expert
According to the makers of OxyClean, the product does not contain any harmful chemicals and it is supposedly made from natural ingredients. When properly diluted or mixed, copper sulfate is not harmful to lawns, ornamental shrubs, trees, turf or other vegetation such as flowers.