Gardenia - Knowledgebase Question

vancouver, b.
Question by haitangyijiu
July 29, 2005
My Gardenia is sick. The leaves are turning yellow and the buds are drying. I asked the Home Depot guysand they told me to fertilize it properly. I followed the instructions, but it is still dying. Please, please help me.


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Answer from NGA
July 29, 2005

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Gardenias need at least a half day of full sun to bloom, but at the same time, the hot afternoon sun can be tough on them. Morning sun is best, so an eastern location would be ideal. You might also try a southern or western exposure with some filtered shade. Buds that turn black or drop and bottom leaves that are yellowed are sure signs that gardenias aren't getting enough light. Leaf drop can also be caused by improper soil pH (gardenia require 5 to 5.5pH - on the acid side.) Yellowing and leaf drop are also signs of various soil nutrient deficiencies such as nitrogen, zinc, and iron. Finally, if the air is too dry, your plant will drop buds and leaves. Try sprinkling the plant every morning to increase humidity (and also discourage spider mites!). Hope these suggestions help!

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