VegetableBean
Winged Bean
Winged Bean (Psophocarpus tetragonolobus) is a vining annual legume that deserves far more attention than it currently receives. Native to tropical regions and grown across Asia for centuries, this heat-loving climber produces distinctive four-winged pods packed with protein comparable to soybeans. In 100 to 109 days, you'll have vigorous vines reaching 10 to 13 feet tall, laden with crisp, tender beans ready to harvest. Hardy in zones 3 through 11, it thrives in full sun and adapts beautifully to containers, raised beds, and garden plots, making it accessible whether you're a seasoned grower or exploring specialty crops for the first time.
Photo © True Leaf Market
Growing Conditions
USDA Zone
3-11
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained, Fertile Loam; Prefers Slightly Acidic To Neutral
Growth Stats
156 in
Height
TypeVining
Spacing
24
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
3-11
Size
156in H x ?in W
Growth
—
Care
High
Hover over chart points for details
Highlights
The winged bean's greatest strength lies in its nutritional density and remarkable adaptability. This open-pollinated heirloom delivers soybean-level protein in a crop that actually enjoys warm weather and grows vigorously with minimal fuss. Its pods, with their distinctive wings running along the sides, are harvested young and tender, offering a crisp snap that works fresh or cooked. Because it thrives in containers and raised beds just as readily as traditional garden beds, even gardeners with limited space can access this underutilized powerhouse.
Common Uses
Young winged bean pods are harvested and prepared much like snap beans, eaten fresh in salads or lightly cooked to preserve their crisp texture. The immature pods offer a tender snap that works beautifully in stir fries, steamed preparations, or eaten raw. As the beans mature, the seeds can be dried and cooked like other dried legumes, providing a high-protein ingredient for soups and grain-based dishes. The entire plant even produces edible tubers at the roots in some growing conditions, adding another dimension to its culinary versatility.
Growing Timeline
No timeline data available yet for this variety.
Care Instructions
Transplant Outdoors
Sow seeds directly into warm soil after all danger of frost has passed and soil temperatures have warmed thoroughly, as these beans are sensitive to cold conditions.
Direct Sow
Direct sow seeds into garden soil, containers, or raised beds once soil is warm and frost danger has completely passed. These heat-loving plants germinate reliably in warm conditions.
Harvesting
Begin harvesting young, tender pods 100 to 109 days after planting, when they are still crisp and the distinctive wings are fully formed but pods remain flexible and snappable. Harvest regularly to encourage continued pod production throughout the warm season. Young pods should snap cleanly when bent, indicating peak tenderness; allowing them to age too long results in tougher, stringier texture. Continue harvesting as long as warm weather persists and vines remain productive.
Pruning
As a vining annual, winged beans require sturdy support structures rather than pruning. Direct young growth onto trellises or supports early in the season, and manage growth by guiding vigorous vines along their supports as needed.
Growing Calendar
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Companion Planting
Pests & Diseases
Ecology & Traits
Edible
Scientific Classification
Psophocarpus tetragonolobus
Family
Fabaceae
Genus
Psophocarpus
Growth Habit
Vining
History & Origin
“The winged bean hails from Southeast Asia, where it has been cultivated for generations in tropical and subtropical regions. Its exact origins remain somewhat obscure, but the crop became firmly established throughout Asia long before reaching Western gardeners. As an open-pollinated heirloom variety, it represents centuries of farmer selection and seed saving within its native growing regions, passed down through communities who recognized its nutritional and culinary value. Though still considered a specialty crop in most of the world, its resilience and productivity have earned it recognition among agricultural development organizations as a crop with genuine potential to become far more prominent in global food systems once gardeners understand its worth.”