1、 Soil

It is advisable to select the soil with thick soil layer, good drainage and some fertility for cultivation of watercress. Generally, sandy loam is the first choice, which can provide sufficient nutrient demand for water spinach and make it grow stronger

2、 Moisture

Its root system grows well and likes to grow in a relatively humid environment. When the soil layer is dry, it can be watered as soon as possible. When watering at ordinary times, we should choose the morning and evening time. The temperature is too high at noon. Watering at high temperature will affect the natural growth of watercress and lead to plant damage

3、 Temperature

Watercress has certain high temperature resistance. Higher temperature will promote the growth of its branches and leaves. The best growth temperature is 18-25 ℃. Too low temperature will cause frostbite and affect its normal growth

4、 Nutrients

During the curing period, it shall be kept to absorb sufficient nutrients, and the base fertilizer is generally selected as the fertilizer. Fertilization is carried out after stripping leaves, which can promote the formation and growth of new leaves and improve the yield of watercress. Be careful not to apply concentrated fertilizer to plants