65-70 Days to maturity. Brassica oleracea var. capitata. Wakamine Hybrid Cabbage Seeds. Hybrid, Non-GMO, Cool Season Annual. This popular Japanese hybrid is vigorous, easy to grow and has good heat tolerance. This medium-sized, deep green head weighs 3 to 3 1/2 lbs with a slightly flattened shape. It can be planted intensively and harvested summer through fall. Strongly resistant to fusarium wilt (yellows) and moderately resistant to black rot. ~ 1,800 seeds per oz.