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Hyacinth Bean growing in a garden

How to grow hyacinth bean

Lablab purpureus

When to plant hyacinth bean

Hyacinth bean is a fast, heat-loving twining vine grown as an annual for its fragrant purple, pink, or white pea-like flowers and its glossy purple seedpods in late summer to fall (NC State: summer to fall). Direct sow after the danger of frost has passed, in light, moist, well-drained soil in full sun, on a sturdy trellis that can carry the vine's weight. It thrives in hot, humid climates.

Hyacinth Bean is timed by season rather than your frost dates, so the planting calendar does not generate ZIP-specific dates for it. Check the cited sources below to fine-tune for your area.

Growing conditions

Lifecycle
Annual
Sun
Full sun
Soil pH
6 to 8

Common problems

  • toxic raw seeds

Sources

Last updated .