my rhododendron bushes leave have turned yellow and I would like to know what to do to make the leaves green again.
Certified GKH Gardening Expert
If you do not fertilize your shrubs yearly, then this could be the issue. It could be a lack of nitrogen. This article will guide you on proper care of these: https://www.gardeningknowhow.com/ornamental/shrubs/rhododendron/rhododendron-care.htm