Generally speaking, if the outdoor temperature is reduced to 2-3 ℃, the orchid should be moved to the indoor for maintenance. It is necessary to pay attention to the timing of moving into the room. If Jianlan is moved to the room too early, it will affect the growth and development of Jianlan, greatly reduce or even not grow flower buds, and the number of flowers in the next year will be much less than before. If you enter the room too late or the indoor temperature is too low, it is easy to cause frostbite or even freeze to death of Jianlan. The temperature should not be lower than minus, and pay attention to keeping warm. Note that before moving Jianlan into the room, we should first kill insects and germs, so that we can kill eggs in advance, so as to prevent Jianlan from suffering insect damage the next year.
Winter is the dormancy period of Jianlan, the absorption ability of plant roots is greatly reduced, the growth is slowed down or suspended. In winter, there is not much demand for water in Jianlan. At this time, we should control the amount of water, but we can not stop watering. We can often spray water or water properly according to the situation to keep the basin soil moist. In winter, when cultivating Jianlan, we should pay special attention to the prevention of root rot. when the weather is sunny and warm, we can move it to the outside to have a sun exposure. It should be noted that Jianlan can not be placed in a room with large temperature difference, and large temperature fluctuation is not conducive to the growth of plants.
Jianlan likes light, but it can't accept long-term direct sunlight. It's better to put it in a place with sufficient scattered light for breeding. When the sun is strong, it should be properly shaded. If the temperature in winter is lower than 10 ℃, it can receive full-time sunlight properly, which is beneficial for Jianlan to produce new buds, improve the resistance of plants and reduce the occurrence of diseases.
In winter, when Jianlan is placed in the indoor culture, it is necessary to pay attention to the air circulation and keep the indoor ventilation. When the weather is sunny and the temperature is relatively high in the daytime, it is necessary to open windows in time to ventilate the turbid air in the room. In addition, orchids cannot be cultured near the air conditioner. Jianlan's roots are more robust, so in winter in addition to maintaining indoor air circulation, but also to ensure the permeability of soil
