Why do leaves turn yellow and fall off in June?

The June snow is named for its white flowers that bloom in summer. Its flowers are as pure as snow and are of great ornamental value. However, in the process of caring for June snow, you may encounter problems with yellowing and falling leaves. To solve these problems, we first need to understand the causes of these problems and take targeted measures. Let’s learn in detail why the leaves turn yellow and fall off in June.

1. Insufficient light

June snow likes light, but as an indoor bonsai, insufficient light may affect photosynthesis, causing yellowing and falling leaves. The solution to this problem is to regularly move the bonsai outdoors or to the balcony to receive light, and then move it back indoors after about a week, gradually extending the indoor maintenance time to cultivate the plant's need for light.

2. The soil in the pot is too wet

Excessive watering will cause water accumulation in the potting soil, affecting the breathing of the roots and causing yellowing and falling leaves. The characteristic manifestation is yellowing of new leaves, which starts from the leaf edges and spreads. The solution is to stop watering, increase ventilation, repot and change soil if necessary, and trim rotten roots.

3. The soil in the pot is too dry

In contrast to overhumidity, lack of water can also cause yellowing and falling leaves, which are characterized by the leaves drooping first, then shrinking and turning yellow, and eventually falling off. If you find that the soil in the pot is dry and cracked, and the soil is separated from the pot wall, you can add water by spraying or soaking until the soil in the pot is moistened.

4. Pests and diseases

Although Serissa serrata is not susceptible to disease, improper maintenance conditions, such as stagnant water or high temperature and humidity, may lead to fungal infection. Symptoms of pests and diseases also include yellowing and falling leaves. The solution is to use appropriate pesticides, such as carbendazim or omethoate, for spray treatment once every 7 to 10 days for 2 to 3 times.

In short, through the above measures, the problems of yellowing and falling leaves of June snow bonsai can be effectively improved, helping the plant to recover its health and continue to bloom its beautiful flowers in summer.