10-15 days microgreens; 20-30 days baby leaf; 45 days full maturity. Brassica rapa var chinensis. Da Hong Winter Hybrid Pak Choi Chinese Cabbage Seeds. Non-GMO, cool-season annual, hybrid. Da Hong Winter variety is excellent for baby leaf production; it grows faster than the Da Hong Summer variety during the fall-winter season. The leaf color is violet-red with green petiole color. Leaves are oval-shaped and tolerant of cool temperatures. To have a harvest as long as possible, plant both varieties. ~ 9,500 seeds per oz.