Q.Why are my Gardenias turning yellow?
My Gardenia leaves are turning yellow and droopy. I don’t know what is wrong. They are in direct sunlight and get plenty of water when needed.
Certified GKH Gardening Expert
Although gardenias can tolerate some direct sun, they will need shade for most of the day. They do best with just a few hours of morning sun, and the rest of the day should be shaded, or dappled light.
They are also not cold tolerant, but this should be less of a concern in your area. They are fully hardy in your zone.
This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-plant.htm