Hyacinth Bean

Scientific Name: Lablab purpureus
Common Names: Hyacinth Bean, Dolichos Bean, Egyptian Bean, Indian Bean

Native to: Tropical Africa, widely cultivated and naturalized in tropical and subtropical regions worldwide
Lighting Requirements: Full sun
Height: 10 to 20 feet (as a climbing vine)
Width: Spreads 5 to 10 feet or more, depending on growing conditions
Winter Look: Dies in Central Texas, collect seeds
Seasonal Interest: Eye-catching purple flowers and ornamental, glossy, purple bean pods; blooms from mid-summer to fall
Drought Tolerance: Moderate; prefers consistent moisture but tolerates short dry periods once established
Soil Requirements: Well-drained, moderately fertile soil; tolerates sandy or loamy soils
pH Range: Slightly acidic to neutral (6.0–7.5)
Hardiness Zones: USDA Zones 9–11; grown as an annual in cooler zones
Deer Resistance: Low
Attracts: Bees, butterflies, and hummingbirds
Toxicity: Pods and seeds are said to be edible when cooked but toxic if eaten raw due to cyanogenic compounds. I wouldn't test it!
Potential Issues: Susceptible to aphids, spider mites, and mildew in humid conditions; vigorous growth may require regular pruning to manage size
Notes: Hyacinth Bean is a fast-growing, ornamental vine celebrated for its vivid purple flowers, striking bean pods, and lush foliage. Often grown as an annual in cooler climates, it adds vertical interest to gardens when trained on trellises, fences, or arbors. The plant is both decorative and functional, as it can provide shade when grown on a pergola or similar structure.

Hyacinth Bean thrives in warm, sunny locations and benefits from regular watering and occasional fertilization to promote lush growth and flowering. 

This vine is a great choice for tropical or pollinator-friendly gardens, with its vibrant colors and nectar-rich flowers attracting beneficial insects and birds. Its vigorous growth makes it ideal for creating fast cover, but it may require occasional pruning to keep it in check.