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What causes leaf drop in the umbrella tree (Schefflera arboricola)?

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Improper watering: both overwatering and underwatering can cause leaf drop. Unsuitable light: strong summer sunlight or being kept in a spot with insufficient light for a long time can lead to leaf drop. Unsuitable temperature: freezing in winter or excessively high temperatures in summer can cause leaf drop. Unsuitable soil: if the soil is too alkaline or too heavy and clayey, it will lead to leaf drop. In addition, it may also have been infected by pests or diseases.

1. Improper watering

Leaf drop in the umbrella tree may be caused by improper watering. Overwatering causes root rot, leaving the plant short of water and causing leaf drop. Or underwatering, with the soil dry for a long time, leaves the plant short of water and causes leaf drop.

2. Unsuitable light

Leaf drop in the umbrella tree may also be caused by unsuitable light. First, direct exposure to strong sunlight in summer causes leaf drop. Second, being kept in a spot with insufficient light for a long time means insufficient photosynthesis, which causes yellowed leaves to fall off.

3. Unsuitable temperature

Leaf drop in the umbrella tree may also be caused by unsuitable temperature. It has a fairly strong ability to adapt to temperature, but freezing in winter or excessively high temperatures in summer will both cause leaf drop.

4. Unsuitable soil

The last possible cause of leaf drop in the umbrella tree is unsuitable soil. It likes loose, breathable sandy soil. If the soil is alkaline or too heavy and clayey, it will lead to leaf drop. In addition, it may also have been infected by pests or diseases.

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