Cabbage Seeds - Pak Choi - Da Hong Winter - Hybrid. Non-GMO. Brassica rapa var. Chinensis. 10-15 days microgreens; 20-30 days baby leaf; 45 days full maturity. Cool season annual. Da Hong Winter variety is excellent for baby leaf production. It grows faster than Da Hong Summer variety during the fall-winter season. When Da Hong Winter variety is grown during summer, the days to maturity is the same as Da Hong Summer variety. Leaf color is violet-red with green petiole color. Leaves are oval-shape and is tolerant to cool temperatures. ~ 9,500 seeds per oz.