yellow leaves on gardenia

Question

I have sprayed my gardenia with white oil, but still have a lot of yellow leaves. Will it hurt to dissolve Epsom salts and feed the plant?

Answer 1

First it may help to pinpoint the exact cause of the leaf yellowing. This article can help with that: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/helping-a-gardenia-bush-with-yellow-leaves.htm

That said, Epsom salt is magnesium sulphate and will help prevent yellowing of the leaves in most cases. Use 1 tbsp. of Epsom salts per foot of height of gardenia.