1、 Soil

The cultivation of Rehmannia glutinosa should use loose and drainage soil. If the soil is too sticky, the roots will be unable to breathe, which may lead to rotten roots

2、 Watering

It likes to be wet and is afraid of waterlogging. Therefore, it should be watered appropriately. It should be watered in time during the growth period without ponding. The soil should always be wet. It can be watered less in winter. The soil can be slightly dry. It should be watered thoroughly when watering

3、 Illumination

Rehmannia glutinosa likes sunshine, but it can also tolerate semi shade. However, sufficient light should be guaranteed during flowering. It cannot be cultured in dark places for a long time, which will affect its growth

4、 Temperature

Give it a growth environment of 12-19 ℃, take cooling measures when the temperature is high in summer, and control the temperature at night at 12-16 ℃