1、 Soil

The cultivation of Hydrangea must use loose sandy soil, or you can buy some soil mixed with sandy soil at the flower market

2、 Moisture

Watering should not be too much. If the amount of water is large, it will cause root rot. generally, it is enough to water once every 2-3 days. If it is cultured outdoors, it is necessary to avoid being caught in the rain. After being caught in the rain, it is necessary to drain water in time. In addition, it must be watered thoroughly when watering

3、 Temperature

The most suitable temperature for the growth of Hydrangea is 10-20 ℃. The temperature should be adjusted in time in summer and winter. The temperature should not be too high or too low. If the temperature is lower than 0 ℃, it will be frostbitten. If the temperature is too low, thermal measures should be taken. In summer, water can be sprayed around it to reduce the temperature

4、 Fertilization

The amount of fertilizer should not be too large. If a large amount of nitrogen fertilizer is applied, it will cause overgrowth and no flowering. The fertilizer should be applied thinly and frequently, and the fertilizer with high concentration should not be applied. If the amount of fertilizer is large, it should be watered in time to accelerate the loss of nutrients