What to do if the leaves of the white magnolia turn yellow? Just do these few things to avoid it

The white magnolia (Michelia alba) is an excellent ornamental tree species, with an upright, straight tree form, deep green and textured leaves, pure white and elegantly understated flowers, and a fresh, pleasant fragrance. The white magnolia also has a long flowering period and a long ornamental season, so it is widely used in urban landscaping and courtyard greening and beautification, while indoors it is decorated with small and medium-sized potted plants, looking very elegant and poised. Compared with other plants, the cultivation method of the white magnolia is relatively difficult, and daily care requires us to put in extra effort, otherwise some problems that worry us greatly will appear, such as yellowing leaves. I believe many flower lovers will encounter this, so what causes it? How should we deal with it? Let's take a look together.

Causes of yellowing leaves in white magnolia and solutions

1. Improper watering

The white magnolia should be watered in moderation, neither too much nor too little. Too much easily leads to waterlogging in the potting soil and root rot, while too little causes the soil to harden and compact, thereby affecting the normal growth of the root system. Once the root system has problems, the supply of water and nutrients to the leaves is also greatly affected, and the leaves will show yellowing.

Solution:

Water according to the principle of "don't water until dry", but it should also be adjusted in good time according to differences in climate and growing environment. Usually, simply keeping the potting soil at a suitable moisture level is enough.

2. Temperature too high

If the ambient temperature is too high, it will intensify transpiration in the leaves of the white magnolia. At this time, if the potting soil lacks water and the environment is not ventilated, the leaves will become yellow from lack of water.

Solution:

Avoid situations with too great a temperature difference; maintaining an average temperature of 5-10°C is more suitable. When the temperature rises, pay special attention to ventilation and air permeability in the growing environment, and at the same time humidify the dry air.

3. Too little light

The white magnolia prefers a growing environment with ample light. If it stays in a relatively shaded environment for a long time, photosynthesis will be greatly affected; in mild cases the plant will grow leggy, and in severe cases the leaves will turn yellow and die.

Solution:

To ensure ample light, the white magnolia needs to be placed in a courtyard, a home balcony, a windowsill, or another place with a longer period of light exposure, but in summer pay attention to avoiding direct strong light, as intense exposure will also have an adverse effect on the plant.

4. Chlorosis

Chlorosis very easily causes the leaves to turn yellow and fall off, and in severe cases it will cause the entire plant to die.

Solution:

A slightly acidic soil should be chosen, and alkaline inorganic fertilizers should be applied only in small amounts. When the disease appears, spray the leaf surface with ferrous sulfate (0.2%), once a week, for 3-4 consecutive sprays, and it will be fine; or spray with alum fertilizer water once a week, for 3-4 consecutive sprays, to relieve the condition.

5. Root rot

The harm of root rot is also relatively serious. It will cause the root system to turn black and rot, affecting the leaves from the bottom up until they finally wither, turn yellow, and fall off.

Solution:

The occurrence of this disease is usually due to excess water. Water according to the principle of "don't water until dry", and keep the soil loose to enhance its drainage. During the plum rain period and other times with more rainfall, timely rain-shelter measures should be taken for the plant; when potting, more broken tiles can be added at the bottom of the pot to speed up the flow of water and promote drainage.

As long as you find the cause, yellowing leaves in white magnolia are relatively easy to deal with. The above causes of yellowing leaves in white magnolia and solutions are hoped to be of some help to everyone. For more content related to white magnolia, please follow Four Seasons Plants Network.