Rhododendron plants are susceptible to root and stem rot, which can cause the leaves to turn black.

Black Leaves on Rhododendron (11 Causes And Solutions)

If you have black leaves on your rhododendron, don’t panic. There are a few possible causes, and even more possible solutions. In this article, we’ll explore eleven possible causes of black leaves on rhododendrons, as well as their solutions. With a little investigation and a bit of trial-and-error, you should be able to figure out what’s causing the problem and get your plant back to good health in no time.