First of all, we should know that this kind of plant comes from the American region, so the temperature requirement is relatively high. It is widely distributed in China, almost all over the country. However, there are more open planting in the South and flower pots are needed in the North due to the cold. To answer this question, we should discuss the specific situation. If it is planted in the open, and the temperature is relatively low in winter, it may be frozen to death; if the temperature can meet the requirements, it may be safe for winter. However, in this case, its aboveground part may wither, but its underground part will not freeze, and it can germinate and grow new plants in the next year. The second situation is that the flowerpot is planted. Of course, it can be raised in winter, but we should pay attention to some problems. Next, I'll talk about the precautions for raising it in winter.
Temperature: of course, the first thing to pay attention to is the temperature, because the main consideration to make it safe for winter is the temperature. First of all, potted plants are not allowed to be put outside. They should be moved indoors in time. However, the temperature should not be too high, in general, control at about 10 ℃.
Water: there is little need for water in winter. After winter, you can not water it directly. The environment is too wet, but it is not conducive to winter.
Ventilation: this kind of plant itself requires a well ventilated environment, which is the same in winter. Always ventilate, can provide fresh air for it.
Lighting: it's also an important aspect of promoting its safe winter. We can put it indoors where we can receive enough light, or we can take it to the balcony in the warm weather to bask in the sun.
