Gardenia flowers won’t open, turning brown
I have a gardenia tree. The flowers won't open and are turning brown.
You don't say if your tree is in the ground or in a pot. Generally if you're having trouble with flowering, you want to increase light, humidity, or adjust minerals - acidic fertilizer, or more phosphorous. Here are a couple of articles: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-plant.htm