Yellow Leaves on Gardenia Bushes

I’ve noticed that just recently the leaves on my gardenia bushes are more yellow and falling off. I’m wondering if I’m watering them too much. I have an automatic irrigation system. I have it running three days a week, at 40 minutes each time. I think the frequency is fine but perhaps the duration of 40 minutes is too much. Should I cut this in half to 20 minutes each time?

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1 Comment To "Yellow Leaves on Gardenia Bushes"

#1 Comment By Nikki On 04/19/2011 @ 9:51 am

Gardenias are notorious for yellow leaves and they are caused by many things. One of the most common is overwatering, so unless the soil is dry, I would hold off on the watering. This article has a few suggestions on what else could be causing the yellowing: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/helping-a-gardenia-bush-with-yellow-leaves.htm ^[1]

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