Gardenia Mystery Plant Has On Some Leaves Spots Reddish Brown. Not Growing On Those Parts — Other Parts Are Growing Ok.

Question

Affected leaves have “new growth” but they do not grow into new foliage. Should I cut those leaves off?

Answer 1

This sounds like it could be a bacterial infection!

I would recommend, only, cutting off the infected leaves. It will, also, benefit from a fungicide. This article will help:

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

This usually happens from overwatering, or soils that remain too moist for too long. If you can keep it from getting watered until the top two inches of soil are dry, then it will reduce infection. If this is not possible, then you will need to treat with fungicide often.

These articles will help you to care for Gardenia plants: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-plant.htm

https://www.gardeningknowhow.com/ornamental/flowers/gardenia/fertilizing-gardenias-in-your-garden.htm