Cabbage is a leafy green biennial, grown as an annual vegetable for its dense-leaved heads. 

Closely related to other cole crops, such as broccoli, cauliflower, and brussels sprouts.

Cabbage heads generally range from 0.5 to 4 kg, and can be green, purple and white. Smooth-leafed firm-headed green cabbages are the most common, with smooth-leafed red and crinkle-leafed savoy cabbages of both colors seen more rarely.

Cabbage heads are generally picked during the first year of the plants' life cycles, but those intended for seed are allowed to grow a second year. 
Cabbages are prepared in many different ways for eating, although in South Africa coleslaw remains a favourite.
Cabbage is a good source of beta-carotene, vitamin C, and fiber.