Why did my camellia fall off before it bloomed?

1, camellia can't fully bloom, or it is a common phenomenon to drop buds before opening. ?

Main reasons: sudden change of temperature, such as hot and cold; The flowers were wet by the rain; Put camellia indoors for viewing, and the ventilation and lighting are not smooth; The air is too dry, the humidity is not enough and so on. ?

2. Avoidance method: When flowering, put it in a fixed place and don't move; Prevent rain from falling on flowers; Spray water on the blades to increase air humidity; Put it in an environment with scattered light, and don't overexpose it. ?

3. If the flowering period of camellia is well maintained, it can reach more than half a month. Moreover, beautiful stamens need to be seen when they bloom. ?

My palace powder has blossomed, and other varieties will blossom one after another:

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