Q: Please help! I’ve tried Popul8, Whoflungdung and Seamungus but my gardenia hedges are still yellowing.
A: All those products are great, but they are not complete fertilisers—they lack the nutrients required to support plant growth. What you need is Kahoona, a fertiliser with nitrogen, phosphorous, potassium, sulphur, calcium, and the other important minerals for your gardenias, iron, manganese and magnesium. Also, check the pH is not too high, gardenias like it acidic, around pH 5-5.5.
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