Why Do Gardenia Leaves Turn Yellow Then Brown and Drop Off?
I live in Texas and it is very hot, 90's and 100's, but my plant is in the shade getting a lot of light but no sun. Please help, it was doing so well in the spring.

Certified GKH Gardening Expert
There are lots of reasons this can happen, but if I had to guess, I would say that it was not getting enough water in the heat you are experiencing. Increase water to the plant. This article will suggest some other options:
https://www.gardeningknowhow.com/ornamental/flowers/gardenia/helping-a-gardenia-bush-with-yellow-leaves.htm
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