Reasons for Yellowing Leaves on Hibiscus and How to Fix Them

1. Too Much Water

Generally, when we solve a problem we must first find the cause. Yellowing leaves are very likely because the owner has watered the plant too much, leaving the soil in the pot in a constantly overly moist state. The soil then lacks oxygen, the roots cannot breathe, and it is very easy for some of the root hairs to rot. As a result, the plant cannot absorb nutrients and water, and leaves turn yellow and drop off. This situation usually shows up as the more tender leaves turning pale yellow first, and then the older leaves turning yellow. At this point we should control the watering, temporarily stop adding fertilizer, and also loosen the soil to help it return to a breathable state.

2. Too Little Water

If it is not the excessive watering described above, then it may be the opposite, too little, and the plant has become dehydrated. Forgetting to water, or watering only halfway for a long time so that the top is wet while the bottom stays dry, will greatly affect the plant's ability to absorb nutrients. It will also cause the leaves to become dull in color and lose their gloss, and the leaves will also droop downward. This situation shows up as the lower old leaves aging first, and then the leaves yellowing and withering from the bottom upward. At this point you should add water little by little, and only water normally once it has gradually returned to a normal state.

3. No Fertilizer

If you have not added any nitrogen fertilizer for a long time, or have not repotted or refreshed the soil for a very long time, then the soil will be lacking nitrogen and other substances, and the plant's leaves will become thin, weak and yellow. At this point you should repot and change the soil in good time, and then gradually add some fertilizer.