While generally low maintenance, purple hyacinth bean vine requires moist, well-draining soil in a sunny location. When grown in partial sun, the vine is more susceptible to fungal diseases, and roots will rot in overly-wet soil.
Plants grown in full sun have more blooms and more vigorous vines. Otherwise the plants are relatively pest and disease free.
Cook the pod before eating them. Unripe pods are popular veggie dish in South Asia.
QUESTION: How should I store my harvested seeds over the winter?
Store in a paper sack or envelope until they are completely dry. After they are dry you can store them in a lidded glass jar.