Q.Outdoor Gardenia Bush
The leaves on my outdoor gardenia are turning black.

Nikki
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on February 27, 2011
It sounds like it may have sooty mold. This article will help: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
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