Why Are My Hibiscus Bushes Dropping Leaves and Some Are Yellow?
The plants get full sun and I water them at least every other day. Tempuratures have been been close to 100.
Certified GKH Gardening Expert
This article may help as well: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/answers-to-what-causes-hibiscus-leaves-turning-yellow.htm
Try using coffee grounds with certain plants it helps them alot, good luch