What Is the Cause of Brown Leaves on a Rose Bush?

By Staff WriterLast Updated Apr 2, 2020 12:36:35 AM ET

Brown leaves on rose bushes can be caused by fungal infections in humid areas. Fungal infections occur when the leaves stay damp and don't have enough sunlight to dry out. Roses should be kept pruned and watered under the plant at the soil line instead of overhead.