1, crispy and nutritious, suitable for cooking all kinds of dishes, and can also be made into cold drinks or dry products, which is very edible. Watercress is rich and comprehensive in nutrition, and contains 50 mg of vitamin C and 2 g of protein per 100g of fresh weight. It also contains various amino acids and vitamin A.

2. watercress has comprehensive nutrition, high content of superoxide dismutase (SOD) and rich vitamins and minerals. Watercress has the function of dredging menstruation, which can interfere with the implantation of eggs and prevent pregnancy. Watercress is sweet and bitter, cold in nature, and enters the lungs and bladder.

3. It has the effects of clearing dryness, moistening lung, resolving phlegm, relieving cough and diuresis. Health-care vegetables for nourishing brain and strengthening body. The Romans used watercress to treat alopecia and scurvy. In Iran, watercress is considered as an excellent food for children.

Extended data:

Watercress, also known as watercress, originated in Europe and has been cultivated in Heilongjiang, Hebei, Shanxi, Shandong, Henan, Anhui, Jiangsu, Guangdong, Guangxi, Shaanxi, Sichuan, Guizhou, Yunnan and Tibet. It is distributed in Europe, Asia and North America, and likes raw water.

Douban likes cold and humid environment. The optimum growth temperature is 15-25℃, and the optimum temperature is about 20℃, and it grows slowly below 10℃. Can endure multiple frosts in a short time, and can safely overwinter in the open air when the temperature is about 0℃ in winter. If the temperature is higher than 30℃, its growth will stagnate and its leaves will turn yellow or wither easily.

Good light is required in the growing period. When the light is insufficient, the growth of stems and leaves is weak and the yield is low. Neutral loam with strong water and fertilizer retention is preferred, and the suitable pH value is 6.5-7.5.

References:

Baidu Encyclopedia-Douban