My gardenias seem to be happy all year around, but when they bloom, they turn half yellow. Is there a way to keep them green through the bloom phase?

  • From an anonymous suggested edit: It is not the leaves that are turning yellow. These are actual flowers that are yellow and they don't even look like the gardenia flower and they have no scent .The regular white gardenias have already bloomed this year. – Niall C. Jul 17 '13 at 21:20

Looks like it is quite a common problem, with nutritional deficiencies being the leading cause. one of the better descriptions can be found here :


Note that there are different kinds of yellow leaf deficiencies. You might be deficient of manganese, magnesium, or iron. An acidic fertilizer is recommended.

Other causes listed include poor drainage and temperature. I don't think drainage would be responsible for the symptoms only appearing when in bloom - that sounds more like borderline nutritional deficiencies (blooming can take quite a few resources in many plants).

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