85 days maturity. Glycine max 'Tankuro'. Tankuro Soybean. Heirloom, Non-GMO. Warm season annual. Open pollinated. These nutrition-packed capsules are frequently used throughout Asia as a staple protein source. In Japan, the black-seeded soybeans are considered richer and sweeter in flavor compared to the traditional green or tan-seeded soybeans. Even though the seed for planting is black, you will find the bean's color dark green at harvest; it retains this color when cooked. Due to its high yield-to-space ratio, it is perfect for container gardening in addition to traditional methods. Approx 94 seeds / oz.