Hibiscus Yellow Leaves and White Spots

Question

I have a hibiscus plant on the side of my house. I live in Florida, Zone 9, Orlando. We had some freezes this year in the winter and I kept it covered when we had the freezes; but now this summer, it’s yellowing, not blooming and has white spots. I’ve used fungicide, insect soap, etc. I keep it watered, but not over-watered. I’ve picked off the yellow leaves, but it’s still doing the same thing. Any other solutions?

Answer 1

Yellow leaves is a common occurrence with these plants. The white spotting may be a result of powdery mildew. Here is an article or two that you may find helpful: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/answers-to-what-causes-hibiscus-leaves-turning-yellow.htm
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm