1、 Soil

Hydrangea needs soil with high nutrient content and strong air permeability. Rotten leaf soil, garden soil, river sand and cake fertilizer can be mixed in the proportion of 4:3:2:1, or rotten leaf soil, sand soil and cake fertilizer can be mixed in the proportion of 6:3:1

2、 Illumination

Hydrangea likes Yin but not Yang. In spring, it's best to move to the semi shade outdoor for maintenance. In summer, you can need an appropriate amount of shade. In autumn, the light is weakening. You should put it in a bright place to promote flower bud differentiation. In winter, you can put it indoors in the sunny place

3、 Moisture

Hydrangea likes wet but is afraid of waterlogging, so it should be watered often, but not too much at a time. Water more in spring and summer, reduce water after autumn, and reduce water again after winter

4、 Temperature

The most suitable growth temperature for Hydrangea is 18-28 ℃. In winter, pay attention to keep warm and raise the temperature to more than 5 ℃ to prevent it from frostbite

5、 Precautions

1. Acid soil. In addition to normal watering, you can also add one or two drops of salt free vinegar to the water, which can reduce the pH value of the soil and make Hydrangea grow better

2. Trim in time. During its growth period, it is necessary to pick the heart to promote the growth of lateral branches, and cut it short before winter, which is more conducive to winter