Cabbage Seeds - Pak Choi - Da Cheong Chae - Hybrid. Annual. Brassica rapa Chinensis group. 35-40 days to maturity. Cool-warm season. NonGMO. This variety has qualities of both Tatsoi and Pak Choi--round, dark green leaves and an upright growth habit. Harvest individual leaves for salad or the whole plant for cooking. Can be grown all year round in mild climate areas. ~ 6,000 seeds per oz.