Gardenia Bushes

Question

My gardenia bushes have suddenly acquired many very yellow leaves. There is a lot of new growth but almost half of both bushes (side by side) have turned a bright yellow (a few of the yellow leaves have black spots on them as well). What am I doing wrong?

Answer 1

Gardenias are notorious for yellow leaves and they are caused by many things. This article has a few suggestions on what could be causing them:
https://www.gardeningknowhow.com/ornamental/flowers/gardenia/helping-a-gardenia-bush-with-yellow-leaves.htm