1、 Keep warm

Hydrangea can't stand the cold, so take measures to keep warm in winter. The northern region must move indoors in time and control the temperature above 5 ℃. If it's warm in the south, you can put it in a place facing south and facing the sun and put on a plastic bag to keep warm

2、 Plenty of sunshine

In cold winter, sufficient sunshine is an indispensable factor. It needs to be raised in a place with light. It can not only promote growth by basking in the sun, but also improve the temperature of plants. You can't keep it in a dark place with bad light, which will make it grow badly

3、 Reduce watering

The temperature in winter is generally low, the growth rate slows down, and the demand for water becomes less. Therefore, watering should be reduced as long as the soil is not particularly dry. The water temperature should be guaranteed. First connect the water and wait until the water temperature is consistent with the room temperature before watering it

4、 Reduce fertilization

In addition to reducing watering, fertilization also needs to be controlled. Fertilize once before winter to enhance the cold resistance of plants. The growth is very slow in winter, so we need to reduce fertilization, or we can not apply fertilizer directly

5、 Pay attention to ventilation

The embroidery bag can not be opened in the stuffy environment at noon, but it can not be raised in the stuffy environment