Cabbage Seeds - Pak Choi - Hotau - Hybrid. Annual. Brassica rapa Chinensis group. 30-35 days. Cool-warm season. NonGMO. Mini type pak choi, 8-10cm (3-4"), uniform, wide and fat petioles. Fast growing, slow bolting and heat-tolerant. Can be planted in late spring, summer and fall. ~ 9,500 seeds per oz.