First, cold tolerance? It is a relatively cold-tolerant plant, and it is also divided into varieties. Some varieties are very cold-tolerant, and can withstand the low temperature of MINUS 20 degrees. Some varieties have poor cold tolerance and can only grow above 0 degrees. In order to ensure the normal winter, it is best to adjust the temperature above 0 degrees to avoid frostbite of plants.

Second, the wintering method 1, potted plants: If the area is very cold, potted plants can be used in this case. Before winter comes, move the flowerpot indoors in advance and put it in a place where the sun can shine, which can not only safely spend the winter, but also promote the robust growth of plants.

2. Shelter: If you want to plant outdoors, but you are afraid of the cold climate, you can cover it with plastic film and foam board. It can not only keep warm but also cause plant frostbite.

3, not only the temperature, but also pay attention to control the application of water. If the basin soil contains a lot of water, the roots may be frostbitten due to the influence of cold climate. Water can be poured in advance before the arrival of winter to improve the cold tolerance of plants.