A rose bush losing leaves may be a sign of a fungus, an irrigation.

May 26, - Leaves falling off of rose bushes can be caused by different things, some natural and some due to fungal attacks. In this article you can look at a few reasons why rose leaves might fall off. Aug 31, Too little water or stressful conditions, like drought or a heat wave, can cause a rose bush to drop its leaves in an attempt to conserve energy.

Because the plants are deciduous, roses dropping leaves in the fall and winter is a natural process.

May 10, Asked n May 10, Why are my leaves falling off my rose plants? Answer this question + 2.