My gardenia bushes’ leaves turn black

Question

My gardenias grow and are covered with blooms, but more than half the leaves stay black and dull all the time. What can I do?

Answer 1

This is sooty mold and is a byproduct of a pest infestation (aphids, scale, whitefly, etc.) This article will help you:
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm