Type
edamame, black-seeded type
Edamame variety
Tankuro Edamame
Tankuro is an established edamame used for harvest at the green stage despite its mature dark seed color. It is valued for rich flavor and traditional character.
Days to maturity
80-90
Best for
specialty edamame, variety collections
About Tankuro
Tankuro is a Japanese black-seeded soybean usually harvested green as edamame, prized for its sweet, rich flavor. Vigorous plants are productive, and if allowed to mature fully the dry beans turn black and can also be used for soy foods.
Growing Tankuro Edamame
Grow it like other edamame in full sun and warm soil, with steady moisture during bloom and pod fill for the best shell size. Pick for edamame when pods are full and green with only slight dark blush, or leave pods to dry completely on the plant if you want the mature black beans.
Full growing guide
For planting dates, care, and harvest that apply to all edamame, see the complete guide.
How to grow EdamameOther edamame varieties
Variety characteristics are general guidance for US home gardens; performance varies by climate, soil, and season. Seed and plant availability differs by supplier. Page updated Aug 4, 2026.