The cultivation of Japanese begonia should avoid flooding and fertilization, and poor ventilation, improper fertilization and insect infection will also cause flower buds to wither.

Bud withering is not formed in a day, and improvement cannot be immediate. Try the following methods to see if it can be alleviated.

After the soil surface is dry, water it every other day. Don't splash the buds when spraying water on the leaves. Immediately move the plants to a well-ventilated and sunny place. If the soil is wet, loosen it as soon as possible to breathe. If there is too much fertilization, water it several times in a row to reduce fertilizer damage.

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