Cabbage Seeds - Pak Choi - Nabi Queen - Dwarf Hybrid. Non-GMO. Annual. Brassica rapa Chinenis group. 40 days. Cool-warm season. This hybrid baby bok choi is often referred to as a nai pe tsai type or dwarf type with thick, white, spoon shaped petioles and wrinkled dark green glossy leaves. This beautiful uniform presentation is matched by its delicious, crisp flavor. It is heat tolerant and has better bolt resistance than many other varieties. ~ 4,500 seeds per oz.