The Q&A Archives: Gardenia Failure To Flower

Question: I have read your answers to gardenia buds failing to open. I have high humidity (Houston Tx area), there are no insects, and it gets plenty of water with dappled sunlight/bright shade. The temp. is fine right now (will be hotter later). Still, my buds form big and almost open, then the tips of the buds turn brown then black just as they are opening. Some open and the ends of the petals are the black. What do I do?

Answer: If you're providing all of the required environmental conditions, your plant may be suffering from a fungal disease. The best course of action would be to take an affected flowering stem to your local Cooperative Extension office for a positive identification of the problem and treatment recommendations. (Phone 281-534-3413) Just for future reference, night temperatures above 65 degrees can cause drop of buds already formed. So, even if you're doing everything right, the weather may not be helping at all! Good luck with your gardenia!

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