When should a Rhododendron plant be fertilized? How many times? What product should be used?
Certified GKH Gardening Expert
A balanced fertilizer or an azalea/rhododendron specific fertilizer will work fine. You can also use a fertilizer for acid loving plants, such as organic cottonseed meal. They like yearly fertilizing either in late fall or early spring.
I usually fertilize my Rhodie in Spring and Fall. I mulch it with pine needles, and water with Miracid. It blooms for me every spring, so I guess I'm doing something right. Hope this helps.