What to do about yellow leaves on a money tree? Do this and it will grow vigorously with lush green leaves

The money tree (Pachira aquatica) has excellent symbolic meaning. Keeping one at home or in the office is great, but problems inevitably arise when growing a money tree, especially the issue of yellowing leaves, which is particularly frustrating and leaves people not knowing what to do. Below I want to introduce several causes of yellowing money tree leaves so everyone can find solutions based on the cause.
1. Over-fertilizing causes yellow leaves on the money tree
Many plant lovers worry that their plants will not grow well without enough fertilizer, so it is easy to over-fertilize. Over-fertilizing can burn the roots and stems of the money tree, and once the roots and stems are burned, their ability to absorb nutrients from the soil declines, which can cause yellow leaves on the money tree. So when fertilizing, do it according to what the plant can handle.
If you really have applied too much fertilizer, promptly remove the rotted roots of the money tree, then repot it with fresh organic soil. You can also water more to dilute the fertilizer in the soil. This method works when the over-fertilizing is not too excessive; if it is too much, you need to change the soil.
2. Overly dense branches and leaves cause yellow leaves
Yes, you read that right. Overly dense branches and leaves can also cause yellow leaves on the money tree, because when the branches and leaves are too dense, the shaded leaves cannot receive sunlight and cannot carry out photosynthesis, and ventilation is also poor, which causes the leaves to turn yellow and grow poorly.
For yellow leaves caused by dense branches and leaves, promptly prune the dense branches and leaves appropriately. Pruning will not affect the growth of the money tree; instead, it will make it grow even more vigorously.
3. Soil pH affects the money tree and causes yellow leaves
The money tree prefers slightly acidic soil, but in some places the soil is more alkaline, especially in the north, where the soil contains more salt. For the money tree, a lack of the iron element it needs for growth will cause the leaves to turn withered and yellow.
If you find that the yellow leaves are caused by soil pH, promptly add something acidic for the money tree, such as ferrous sulfate. Sprinkling it directly into the money tree's pot can increase soil fertility and also increase soil acidity, achieving two things at once.
4. Pests and diseases on the money tree cause yellow leaves
If the money tree is attacked by pests and diseases, yellow leaves can also appear, because pests and diseases damage the leaves and prevent the money tree's leaves from growing normally, such as spider mites and other pests, leaf spot disease and other diseases.
At this time, pay attention and observe. If it really is infected with pests or diseases, promptly spray the corresponding pesticide for the pests and diseases that appear, and promptly remove the pests and diseases for the money tree, and the money tree can return to normal.