How to treat Gardenia leaves going yellow?

DolceVita

I purchased this Gardenia from Bunnings a few months ago and have planted in a pot using the rose / gardenia potting mix.

The leaves are starting to yellow and I don’t know what is wrong.

The plant gets some morning sun, is sheltered from winds etc and the soil is moist.

What could be the problem?

Thanks.

could be the problem?

Thanks

JacobZ

Hi @DolceVita,

Thank you for your question about yellow leaves on your gardenia.

Iron deficiency is a common cause of yellowing leaves, especially in gardenias. The leaves may turn yellow, but the veins remain green. This condition, called chlorosis, often occurs in alkaline soils where iron becomes less available to the plant.

My suggestion is to apply some Manutec Iron Sulphate Soluble to the base of the plant following the manufacturer's instructions for mixing.

I'd also suggest having a read through Growing Gardenias: How To Grow Gardenias for some further advice.

Also, allow me to tag @Noelle, our resident horticultural expert to see if she has any other advice.

Let me know if you have any further questions.

Jacob