The temperature in winter is very low. If it's in the north, don't do it at this time. The north of the South will be a little warmer, as long as the temperature is not too low, you can cut. If you want to cut in winter, you should keep the temperature of cutting environment at about 13-18 ℃, if you are in the greenhouse, it is no problem
In general, cutting Hydrangea is best carried out in spring and Autumn Festival. Spring is probably at the end of spring and the beginning of summer. The climate in this period is very stable, and there will be no high or low situation. It is easy to root and survive after cutting. If you want to cut in autumn, try to avoid the end of autumn, because there are some areas at the end of autumn temperature has been very low, cutting survival rate will be reduced.
The branches used in cutting must be robust and have more lateral buds. Such branches have strong growth ability and good resistance. The survival rate of such branches is high after cutting
