VegetableBean
Shinonome Soybean
Shinonome Soybean is an early-maturing heirloom variety that transforms in 80 to 89 days from seed to harvest. This open-pollinated Japanese cultivar produces bushy, upright plants reaching 24 to 36 inches tall, making it efficient for containers, raised beds, and garden plots. The beans themselves feature a distinctive clear hilum, marking this as a specialty soybean prized for tofu, soymilk, miso, and soy sauce production. It thrives in hardiness zones 3 through 9 with full sun and moderate water, rewarding gardeners with exceptional yields in compact growing spaces.
Photo © True Leaf Market
Growing Conditions
USDA Zone
3-9
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained, Fertile Loam; Prefers Neutral To Slightly Alkaline
Growth Stats
36 in
Height
TypeUpright
Spacing
15
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
3-9
Size
36in H x ?in W
Growth
—
Care
Moderate
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Highlights
Shinonome earned its reputation among Asian soybean producers for an outstanding yield-to-space ratio that rewards even small-space growers. The early maturity window (80 days minimum) means you can harvest before autumn frosts arrive in northern regions, while the bushy growth habit eliminates the need for staking or support. Its clear hilum is a tell-tale mark of a soybean bred specifically for processing into traditional Asian staples, giving home gardeners direct access to ingredient quality usually reserved for commercial producers.
Common Uses
Shinonome soybeans are harvested at full maturity for processing into traditional soybean products. Home gardeners use them to make fresh tofu and soymilk through simple kitchen techniques, ferment them into miso paste, or process them into soy sauce. Unlike edamame varieties eaten fresh as immature beans, Shinonome reaches full maturity in the pod, developing the starch and protein content needed for these culinary applications. The clear hilum indicates optimal bean quality for producing the smooth texture and clean flavor characteristic of premium tofu and soy products.
Growing Timeline
No timeline data available yet for this variety.
Care Instructions
Direct Sow
Direct sow Shinonome soybeans into warm soil after the last frost date, when soil temperatures consistently reach 60 to 75 degrees Fahrenheit. Push seeds into the soil at spacing intervals and water in gently.
Harvesting
Let Shinonome soybeans mature fully in their pods on the plant before harvesting for processing. The pods will turn brown and dry, and beans inside will feel hard when fully mature (typically 80 to 89 days from planting). Pull entire plants or pick individual pods once they've reached this papery-brown stage. Spread harvested pods in a warm, dry location to cure completely before shelling out the mature beans.
Growing Calendar
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Companion Planting
Pests & Diseases
Ecology & Traits
Edible
Scientific Classification
Glycine max
Family
Fabaceae
Genus
Glycine
Growth Habit
Upright
Native Status
L48 (I)PR (I)CAN (W)
History & Origin
“Shinonome is a Japanese heirloom soybean, developed and refined over generations in Japan for its superior characteristics as a processing bean. The variety carries the cultural DNA of traditional Japanese agriculture, where the distinction between eating soybeans and processing soybeans has been understood for centuries. Its journey to Western seed catalogs reflects the growing appreciation for heritage Asian vegetables among home gardeners and food enthusiasts seeking authentic ingredients for tofu-making and fermentation.”