Yellow leaves on hibiscus

Question

Do yellow leaves on my potted hibiscus tree mean it needs more water or less?

Answer 1

It could be either; too much or too little.
Yellowing leaves can also be due to pests, fungus or nutrition.

Here is an articles that will help you correct the cause.
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/answers-to-what-causes-hibiscus-leaves-turning-yellow.htm