Cool in nature.

1. Sweet beans are a semi-cold-tolerant vegetable that likes cool and is afraid of heat. The minimum temperature for seed germination is 4-6°C, and the optimal temperature is 16-18°C. If it is higher than 25°C, the germination and emergence rate will decrease. , strong ability to adapt to low temperatures in the seedling stage. The suitable temperature is 15-18°C during the flowering stage, and the suitable temperature is 18-20°C during the maturity stage of the young pods. When the temperature exceeds 26°C, the quality will decrease and the yield will decrease, requiring longer sunshine and stronger light. It has wide adaptability to soil, but loose soil with high organic matter content is better.

2. Sweet beans are cold in nature and are harmful to the kidneys. They may cause insufficient kidney yang in the human body, kidney yang deficiency, and may even lead to a decline in kidney function.