Chinese Cabbage Seeds - Kyoto No. 3. Heirloom, Non-GMO. Brassica rapa Pekinensis group. 80 days. Cool season annual. A Japanese heirloom or dento yasai variety of Japan, this cabbage has a barrel shaped head and matures to 6-7 lbs. Mildly flavored and stores well. Prefers cool temperatures for its main growing season. ~ 7,600 seeds per oz.