What are the latest solutions for yellowing leaves on white magnolia (Michelia alba)?

The white magnolia has fairly high ornamental value, and yellowing leaves are a very common problem during cultivation, mainly caused by improper care. So if you want a white magnolia with elegant white flowers and fresh green branches, you need to put more effort into its care. Below, let's learn about the causes of yellowing leaves on white magnolia and the solutions!

Excess water causes yellowing leaves

[Cause of yellowing] If the white magnolia's potting soil is watered too much or too little, or alternates between dry and wet, its fleshy root system cannot tolerate it, which can cause yellow leaves and so on.

[Solution] Water appropriately. After the potting soil dries, do not use too much water when watering at one time, and do not leave it in a drought state without watering for a long time.

Excessively high temperature causes yellowing leaves

[Cause of yellowing] Yellowing leaves on white magnolia are greatly related to temperature; when the temperature is too high and it is stuffy and hot, yellowing leaves can also occur.

[Solution] Temperature should be kept stable, not too high or too low; 5~10°C is most suitable. When the temperature rises and the environment is stuffy and hot, pay attention to ventilation and improve humidity management.

Too little light causes yellowing leaves

[Cause of yellowing] White magnolia likes sunlight. If there is too little sunlight, it can also cause poor plant growth and yellowing leaves.

[Solution] White magnolia is suitable for planting in courtyards or on home balconies, windowsills, and similar places. It needs sufficient sunlight, but cannot be exposed to intense sun; in summer, when the sun is strong, pay attention to shading.

Chlorosis causes yellowing leaves

[Cause of yellowing] When white magnolia develops chlorosis, it can also cause leaves to turn yellow and fall off, and in severe cases the plant may die.

[Solution] For white magnolia, use slightly acidic soil for the potting mix, and do not apply too much alkaline inorganic fertilizer or water. If chlorosis appears, promptly spray the leaves with 0.2% ferrous sulfate once a week for 3~4 consecutive times, or spray with alum fertilizer water once a week for 3~4 consecutive times to control the condition.

Root rot causes yellowing leaves

[Cause of yellowing] When white magnolia develops root rot, and the root system rots and turns black, the leaves can also become withered and yellow and fall off.

[Solution] Root rot is mainly caused by too much water. Usually wait until the surface of the potting soil turns white before watering again, and loosen the soil frequently. During the plum rain season or when there is too much rain, it is best to move it under the eaves or indoors to avoid the rain; when potting, add more broken tiles and so on at the bottom of the pot to make drainage smooth, and prop the pot up on bricks to speed up water flow.