Winged Bean
IOverview
Overview
Winged Bean (Psophocarpus tetragonolobus), a perennial climbing vine native to Tanzania, can grow up to 2 meters in height and thrives in full sun with moist soil that ranges from light sandy to heavy clay. Hardy in zones 8-12, this versatile plant is well-suited for warm climates and serves multiple purposes, including as an edible and ornamental addition to gardens. The winged bean offers a variety of parts for consumption, such as flowers, leaves, roots, seeds, seedpods, shoots, and stems. One distinctive feature of the plant is its quadrangular pods, which are key in identifying the species. This leguminous vine is known for its utility as a cover crop, oil source, soil reclamation tool, and nitrogen fixer. It has been introduced to various regions including Assam, Bangladesh, Bismarck Archipelago, Brazil North, Cambodia, China South-Central, Christmas Island, East Himalaya, Egypt, Florida, Ghana, Hainan, Honduras, India, Ivory Coast, Jawa, Laos, Lesser Sunda Islands, Malaya, Maluku, Marianas, Myanmar, Nepal, New Guinea, Nigeria, Philippines, Sierra Leone, Sri Lanka, Sulawesi, Sumatera, Taiwan, Thailand, Trinidad-Tobago, Vietnam, West Himalaya, and Zambia. Its edible uses include oil, coffee, and coloring, making it a valuable plant in both culinary and practical contexts.
What is Winged Bean?
Winged Bean (Psophocarpus tetragonolobus), a perennial climbing vine native to Tanzania, can grow up to 2 meters in height and thrives in full sun with moist soil that ranges from light sandy to heavy clay.
VCultivation
Cultivation
- Seed viability
- 3-5 years
How to grow Winged Bean for the first time
Start with winged beans by providing full sun, moist soil, and basic care for a rewarding first gardening experience.
- 1
What you'll need
Seeds or seedlings, a sunny spot in your garden, and some compost.
- 2
Best time to plant
Plant winged beans after the last frost when soil temperatures are above 18°C (65°F).
- 3
Soil and container prep
Ensure the soil is well-draining, with a pH between 6.0 and 7.5.
- 4
Sowing or transplanting
Direct sow seeds 1-2 cm deep in rows spaced about 30 cm apart; or start seedlings indoors and transplant them later.
- 5
First two weeks
Keep the soil consistently moist, especially during germination. Provide light shade if temperatures are very high.
- 6
Ongoing care
Water regularly to keep the soil moist but not waterlogged; fertilize with compost every few months.
- 7
Harvest or pruning
Prune vines as needed for support and remove dead leaves. Harvest young shoots, flowers, and pods when they are tender.
- 8
Common mistakes
Overwatering, planting too early in cold soil, neglecting to provide support structures, and not harvesting regularly.
VIEdible & utility
Edible & utility
VIIDistribution
1 native · 41 introduced
Distribution
1 native · 41 introducedIXSpecimen gallery
1 image
Specimen gallery
1 imageExplore further
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