Hibiscus Trees

Question

My 3 Hibiscus trees have produced multiple beautiful flowers with large buds. Recently, they have been producing small green buds that turn yellow and drop off to the ground before getting large or flowering. Also, some of the leaves are turning yellow while the rest are dark green. There is an underground sprinkler watering 3x/week. What’s happening and what do I do?

Answer 1

This article may help with the yellowing: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/answers-to-what-causes-hibiscus-leaves-turning-yellow.htm
As to the bud drop, this article may have some suggestions that can help: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-flowers-hibiscus-blossoms-falling-off-plant.htm