Winged bean is also known as Asparagus pea, Winged pea, Four Angled bean, Manila bean, Princess bean, and Dragon bean. Almost every part of this tropical plant is edible: The beans (used as a vegetable), the leaves (cooked like spinach), the roots (similar to potato), and the dried seeds (used for flour).
Cultivation: Prepare fertile, well-drained soil in a warm, sunny location. Seeds can be difficult to germinate. For better germination, pre-sprout seeds indoors by soaking in water for 24 hours until swollen and then keep at 77°F until sprouted. Scarify seed coat for seeds not swollen and resoak. Plant when seeds sprout. Keep soil moist. Fertilize sparingly. Train to grow on a vertical support. Large vigorous vines can reach 9-12'. Harvest beans up to 3" in length.