1. It may be because the maintenance position is improper, and the plant cannot accept the full light maintenance. It is important to know that the light is still very important for the development of the plant. Once lacking the light, it will have a great impact.
2. Or the ventilation of the environment is not good, so that the lack of oxygen, the plant can not smoothly carry out gas exchange and thus affect the growth.
3. It's easy to appear this phenomenon when the water is too much. The root system will lack of oxygen. Not only that, it will be damaged by blisters. Once infected, it will not only cause poor growth.
4. If the temperature is too low, it will also cause this phenomenon. The reason is that the tissue is frozen and lack of vitality.
1. In daily maintenance, we need to place the plant in a well lit area to cultivate, so that it can receive sufficient light nourishment.
2. Let the gas circulate to ensure fresh gas exchange.
3. If the root is seriously damaged, it needs to be replaced and pruned if necessary.