Q.rose of sharon
I have two Rose of Sharon bushes [out of 15] that have total yellow leaves. It is fall here and unsure if to cut back or what. No signs of “bugs.” They started this about 3 months ago.
Thank you.

Alisma
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on October 5, 2016
If there are no bugs on the plants, the most likely explanations for yellow leaves are excessive water or a lack of nutrients in the soil. See this article for advice:
https://www.gardeningknowhow.com/ornamental/shrubs/rose-of-sharon/yellowing-rose-sharon-leaves.htm
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