5 Phaseolus polystachios Seeds - Wild Kidney Bean Vine

Phaseolus polystachios, commonly known as wild kidney bean or thicket bean, is a perennial vining legume native to eastern North America. This underused native vine produces clusters of small, pale purple to pinkish flowers in late summer, followed by small bean pods. It is an excellent choice for naturalized areas, pollinator gardens, and woodland edges, where its twining habit can scramble over fences or trellises. The plant is valued for its ornamental flowers and its role as a host for native bees and butterflies.

Wild kidney bean is a low-maintenance perennial that returns year after year in suitable climates. Its delicate foliage and twining stems add a soft, natural texture to the garden, and the flowers attract a variety of pollinators. The small beans that follow are not typically harvested for culinary use but can be left for wildlife.

Plant Features

• Perennial twining vine native to eastern North America
• Produces small, pale purple to pinkish flowers in late summer
• Attracts native bees and butterflies
• Small bean pods follow the blooms
• Ideal for naturalized areas, pollinator gardens, and woodland edges

Growing Information

• Botanical Name: Phaseolus polystachios
• Plant Type: Perennial vine
• Sunlight: Full sun to partial shade
• Soil: Well-drained, average to moist soil
• Water Requirements: Moderate; keep soil evenly moist
• Growth Habit: Twining vine
• USDA Hardiness Zones: 5-9
• Bloom Season: Late summer
• Mature Height: 6-10 feet
• Spacing: 12-18 inches apart

Planting & Care

Sow seeds indoors 4-6 weeks before the last frost or directly outdoors after the danger of frost has passed. Scarify seeds by nicking the seed coat with a file or sandpaper, then soak in water for 12-24 hours before planting. Sow seeds 1/4 to 1/2 inch deep in a well-draining seed-starting mix. Keep the soil consistently moist but not waterlogged. Germination typically occurs in 2-4 weeks at temperatures around 70-75°F (21-24°C). Once seedlings have developed several true leaves and all danger of frost has passed, transplant them outdoors after hardening off. Provide a trellis or support for the vines to climb. Water regularly during the first growing season to help establish a deep root system. In subsequent years, wild kidney bean is relatively drought-tolerant but benefits from occasional watering during dry spells. Mulch around the base to conserve moisture and suppress weeds.

What's Included

5 Phaseolus polystachios seeds.