In the cold winter in the north, some potted flowers of southern origin must be moved into winter indoors. Overwintering temperature is too low, will make some flowers suffer from different degrees of cold damage or frost damage, light leaves fall, while the weight is dead. The overwintering temperature is too high, so that they continue to grow in the winter, can not get the dormant or low temperature vernalization effect, the next year's growth and development and flowering results are extremely unfavorable. The winter temperature in Milan is suitable for 10-12 °C. Too low and easy to fall leaves, too high, the top buds are likely to sprout, grow delicate branches and leaves, the following year is easy to remove from the outside, affecting flowering. Camellia winter temperature is 3 - 5 °C as well. Camellia flower buds have formed at the turn of summer and autumn. If you do not sleep at a low temperature for a period of time, your buds will be stunted. If the room temperature exceeds 15°C, it is easy to germinate in advance and cause defoliation and budding.
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