1. Soil
Douban Green likes loose, fertile and permeable soil. It's better to use loam, garden soil and river sand. After mixing, it's better to prepare the soil to avoid excessive viscosity. The soil wants loose, had better be the loam with slight acidity, such ability makes it grow more robust..
2. Light
Douban green needs to have bright scattering light and can withstand half shade. In the maintenance process, it should be in a bright environment. Winter in the north, it can accept full sunlight; summer morning and evening can see direct sunlight, at noon must be shaded, otherwise it will burn.
3. Moisture
Keep basin soil slightly wet can, it is relatively drought resistant plant, but there are certain requirements for water, so too dry will make it grow weak, waterlogging will cause rotten roots.
4. Fertilization
Douban green is a kind of fertilizer loving plant, which is given a thin liquid fertilizer every half month during its growth period. It can grow faster, but when the temperature is lower than 10 degrees and higher than 30 degrees, it is necessary to stop fertilization so as not to cause fertilizer damage.
5. Temperature
In winter, watercress need a warm environment. The temperature between 10-30 ℃ is the room temperature for its growth, so that it can grow normally.