How to Grow Winged Pea
Winged Pea
Psophocarpus tetragonolobus
vegetableWinged pea is a tropical legume vine producing distinctive four-winged, bright green pods that are eaten as a vegetable. It's also valued for its edible tubers, seeds, and leaves, making it a highly productive multipurpose crop. The plant grows vigorously and can climb 6-8 feet if provided support.
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Example Winged Pea timeline · Pittsburgh, PA (Zone 6b)
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Plant Winged Pea
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Winged Pea
Around Jun 16≈ 60 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in warm tropical and subtropical zones (USDA 10-11); grows best where temperatures stay above 60°F
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Get my Winged Pea timeline →Growth Stages
Seedling
2-3 weeksSmall plants with 2-4 true leaves emerge. Initial growth is slow but steady.
Keep soil consistently moist. Provide shade cloth in very hot climates. Thin to strongest seedlings if directly seeded.
Vegetative Growth
3-4 weeksVigorous vine growth with compound leaves and climbing stems. Plant rapidly extends vertically.
Install trellising or support structure early. Fertilize every 3-4 weeks with balanced fertilizer. Maintain consistent moisture.
Flowering
2-3 weeksBeautiful blue, purple, or pink pea-like flowers appear at leaf axils. Flowers open in clusters.
Ensure adequate support for vining growth. Continue regular watering. Pollination is typically self-fertile but bees improve set.
Pod Development
3-4 weeksYoung winged pods form and elongate, developing distinctive four-winged ridges. Pods are bright green and tender.
Harvest pods regularly to encourage continued production. Water consistently during pod development. Avoid water stress.
Tuber Formation
Variable, 4-6 weeks after vining beginsIf grown for tubers, small potato-like tubers develop at the plant base. Occurs in later growing season.
Maintain moisture and allow longer growing season. Tubers are ready when plant begins to decline.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick beetles and egg clusters. Use neem oil spray. Plant marigolds as deterrent.
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Spray with insecticidal soap or neem oil. Use yellow sticky traps. Maintain good air circulation.
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Remove infected pods promptly. Use Bt (Bacillus thuringiensis) spray. Harvest early and frequently.
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Spray water to dislodge. Use insecticidal soap or neem oil. Encourage beneficial insects.
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Spray with miticide or horticultural oil. Increase humidity with regular misting. Remove heavily infested leaves.
Uses
Pod Vegetable
CulinaryYoung winged pods are eaten fresh or cooked like snap peas or okra, with a mild flavor and slightly waxy texture. They can be stir-fried, steamed, boiled, or added to curries and traditional Southeast Asian dishes. [source]
Seeds and Sprouts
CulinaryMature dried seeds are cooked like lentils or chickpeas and provide high protein content. Young sprouts are also nutritious additions to salads and stir-fries. [source]
Tuber Staple
CulinaryUnderground tubers resemble small potatoes and can be boiled, roasted, or fried as a carbohydrate source with nutty flavor. Common in tropical Asian cuisines. [source]
Traditional Medicine
MedicinalUsed in traditional Asian medicine for treating diabetes and supporting digestive health. Contains compounds that may help regulate blood glucose. [source]
Nitrogen Fixation
HouseholdAs a legume, winged pea fixes atmospheric nitrogen and improves soil fertility, making it an excellent cover crop and green manure plant for sustainable farming. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest pods when 3-4 inches long and still tender, typically 60-80 days after planting. Harvest regularly (every 2-3 days) to encourage continued flowering and production. For mature seeds, allow pods to dry on the vine, then shell and store dry. For tubers, dig carefully when vines decline after 120+ days of growth. Young leaves can be harvested and cooked as greens.
Fun Facts
- 🌱 Winged pea is also called 'asparagus pea' or 'dragon bean' due to the distinctive four-winged appearance of its pods, which have ridged edges resembling little wings.
- 🌱 All parts of the plant are edible and nutritious: the pods, seeds, tubers, and young leaves, making it one of the most versatile tropical vegetables.
- 🌱 The plant is native to Southeast Asia (particularly Papua New Guinea and Indonesia) and is still widely cultivated throughout tropical Africa and Asia for food security.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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