What causes osmanthus trees to drop leaves, and how should it be solved?

The osmanthus tree is a plant with a very long history of cultivation in our country. There are large numbers of osmanthus trees grown in the open ground south of the Yellow River and in the southwestern region, and they are often appreciated as potted plants. However, problems also often arise during care, such as leaf drop. So, do you know what is going on when an osmanthus tree drops its leaves? What should be done when this happens?

Below, the Plant Encyclopedia editor analyzes for you the causes of osmanthus tree leaf drop and the solutions:

1. Heavy leaf drop after transplanting

After an osmanthus tree is transplanted, heavy leaf drop often occurs. This is mainly because the root system is damaged during transplanting, and the transport of water and nutrients is blocked. At this time it is in the seedling recovery period.

Solution: After transplanting an osmanthus tree, water it thoroughly and place it in a ventilated, shady place for care. Do not expose it to direct sunlight. Only when the leaves show vitality or new buds sprout can normal care begin.

2. Waterlogging causes root rot and leaf drop

If an osmanthus tree is waterlogged, it will cause root rot, and root rot will cause leaf drop.

Solution: If an osmanthus tree planted in the ground is waterlogged, dig trenches and loosen the soil to drain away excess water. If a potted osmanthus is waterlogged, it can be repotted.

3. Pests and diseases cause leaf drop

Osmanthus brown spot disease, osmanthus blight, and osmanthus anthracnose are common leaf diseases of osmanthus. These diseases can cause early leaf drop in osmanthus, weaken the plant's growth vigor, and reduce the flower yield and ornamental value of osmanthus.

Solution: Strengthen cultivation management and reduce sources of infection. For potted osmanthus, promptly remove diseased leaves. For osmanthus trees grown in the open ground, thoroughly clear away diseased fallen leaves in autumn. In addition, in severe cases, scientifically use chemical agents for control.

[Tips] The osmanthus tree is an evergreen plant. Even in winter it will not drop its leaves. Even old leaves will fall and be renewed due to metabolism, but mostly in April. At other times, old leaves rarely fall. Note that in the severe cold of northern winters, osmanthus trees generally cannot be planted in the ground and can only be appreciated as potted plants.