Leaves Turning Yellow on My Gardenia
I have my gardenia potted. I had it planted in a garden but grasshoppers ate most o the foliage last year, so I potted the plant and have kept it in the garage during the cold months, setting it out on warm days. The plant has done very well until the past week or so and several of the leaves have turned yellow.
Certified GKH Gardening Expert
Yellow leaves normally signal that the plant is under some type of stress. In order to remedy the problem, you must first try to pinpoint the issue. This article should help you with that: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/helping-a-gardenia-bush-with-yellow-leaves.htm
This article may also help: https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm