Kidney beans have a short growth cycle and wide adaptability to soil and climate, making them one of the favorite crops for farmers. Its drought and barren resistant characteristics enable it to achieve good harvests in various environments. As a leguminous plant, Yundou has symbiotic nitrogen fixing bacteria in its roots, which can naturally improve soil fertility, reduce fertilizer use, and be environmentally friendly. At the same time, its efficient photosynthetic capacity has also contributed considerable biomass to agricultural production.

Kidney beans are native to Mexico and Central America, and later spread to various parts of the world. Due to their strong adaptability and easy cultivation, they are cultivated in many parts of the world. According to different varieties and growth environments, the shape and color of kidney beans also have their own characteristics, some are round like pearls, some are flat like swords, and the color ranges from tender green to deep purple. The edible part of kidney beans mainly consists of their tender pods and seeds. Whether it is stir fried, stewed, or cold mixed, they can display their unique flavor and taste.