The quick and convenient step by step guide to growing your Canton Pak Choi Seeds! Pak Choi is a Chinese vegetable variety that is grown for a multitude of uses. Also called Chinese Cabbage or Bak Choi. Chinese Pak Choi can be used at many different stages for additions to soups, salads, and meats, and more. The Pak Choi heads have thick, white ribs, and is also called Bok Choy in some locations. It matures in approximately 50 days. Chinese cabbage dates back to the 15th cen