- You will get 150 Seeds of Mibuna Chinese Mustard Vegetable Seeds. - Sunlight: Full Sun. - Life Cycle: Annual. - Watering: Medium. - Early Mibuna, the 1500 year old heirloom Asian cabbage, for making traditional kimchi, soups and salads!. - Brassica rapa Japonica group. - Greens in a hurry! 3-4 weeks!. - This traditional Japanese green vegetable, dento yasai, is cultivated in Mibu, Kyoto prefecture. An early open pollinated variety, this vigorous grower produces a dense cluster of long, narrow, rounded, dark green leaves. The delicious leaves have a mild mustard flavor. Cut for baby leaves as early as 21 days. This variety is cold tolerant. It is very similar to mizuna green. Cool season annual. - Maturity: Approx. 21-40 days. - Planting season: Late summer/early fall. - Planting depth 1/4". - Spacing 5".