A Gardeners Forum Forums General Discussion The Plants and Flowers Forum Gardenias

I planted my gardenias this spring. They have been doing wonderfully. I think my zone is 7 or 8 any way just across the Mississippi River in Arkansas from Memphis. I have been feeding them every three weeks, and watering as needed. About two weeks ago I noticed one or two leaves here and there turning yellow. Now the majority of the leaves have turned or are turning yellow. What should I do to save them?

You are feeding them an acid food? Has your weather fluctuated drastically? That causes mine to kind of 'shock' and leaves to yellow. I also use ammonium sulphate w/iron on mine.

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I am feeding a general liquid fertilizer recommended by the garden shop. I am not sure but it doesn't say anything about acid. Weather hasn't taken an unusual turn. Cooler nights and days are above the 90's. What kind of "acid". I'll try the ammonium sulphate with iron. I would imagine I can get that at most garden centers? Does it sound like I am going to loose them, or do I need to do something else drastic to save them?
Thanks for the advice.

Miracid is one thing that comes to mind. Any food that says for camellias or azaleas is an acid food. The ammonium sulphate really just helps condition the soil to retain acid. It will also help turn your hydrangeas blue. I think they will survive unless you have a really harsh winter. You can cover them for a while in foul conditions.
Good luck.