Tankuro Soybean - Organic Make your own tofu or soymilk with this wonderful edamame variant! Harvested only on Dec 1, 2022. Fresh and high germination rate. 4 seeds per pack. Be sure to enrich your soil with organic matter. Full sunlight. (90 days) Open-pollinated. In Japan, black-seeded edamame varieties are deemed to have a richer and sweeter flavor than green or tan-seeded kinds. Tankuro was the winner for productivity and pleasing flavor in our 2010 trial to find the best black-seeded variety. Pick promptly when the immature seeds are bulging yet the pods are still dark green before the plants begin to yellow. Those pods that you miss will dry down, maturing beautiful black pearls that can provide your next year’s planting stock.