Cabbage, scientific name: cabbage, is a plant of Cruciferae and Brassica. It is a variety of cabbage. Sowing time: sow seedlings from the end of March to the beginning of April, plant in late May, and harvest in July to September. Cabbage has different colors such as green, white and red. Its morphological characteristics are: many basal leaves, thick, layered into spheroids, oblate spheres, usually with a diameter of10 ~ 30 cm or more. Cabbage originated in the Mediterranean coast and was introduced to China in the16th century. It has the characteristics of cold resistance, disease resistance, strong adaptability, easy storage and transportation, high yield and good quality.