45 days to Maturity, 20-30 days as baby leaf. Brassica rapa Chinensis Group. Purple Magic Epic High Pak Choi Seeds. Cool season annual, hybrid. This variety of pak choi has the most intense color of all the purple choi. It has a deep, dark purple top leaf with green underleaves, purple veins, and green petioles. It can produce a beautiful purple color in warm and cool temperatures. This cabbage is tender, mild-flavored, and easy to grow! ~ 4,500 seeds per oz.