25 Riverbank Lupine Seeds - Blue Lupinus for Spring Bloom Spikes

Riverbank Lupine (Lupinus rivularis) is a striking wildflower known for its tall, elegant spikes of blue to violet-blue flowers that rise above palm-shaped foliage in spring. This native perennial brings a graceful, vertical accent to meadow gardens, pollinator plantings, and naturalized landscapes. Its blooms attract bees and other beneficial insects, and the plant's deep taproot helps improve soil. Riverbank Lupine is well-suited to informal garden settings and restoration projects.

Easy to grow from seed, this lupine offers a rewarding way to add early-season color and texture. The plants form neat clumps of silvery-green leaves and send up flower spikes that sway gently in the breeze. Whether used in borders, cottage gardens, or wildflower mixes, Riverbank Lupine delivers reliable beauty with minimal fuss.

Plant Features

• Striking blue to violet-blue flower spikes in spring
• Attracts bees and other pollinators
• Palm-shaped, silvery-green foliage
• Native perennial wildflower
• Improves soil with nitrogen-fixing roots

Growing Information

• Botanical Name: Lupinus rivularis
• Plant Type: Perennial wildflower
• Sunlight: Full sun to partial shade
• Soil: Well-drained, sandy or loamy soil
• Water Requirements: Moderate; drought-tolerant once established
• USDA Hardiness Zones: 7-9
• Bloom Season: Spring to early summer
• Mature Height: 2-3 feet
• Spacing: 12-18 inches apart

Planting & Care

Sow Riverbank Lupine seeds outdoors in fall or early spring after scarifying the seed coat (nick with a file or soak in warm water for 24 hours). Plant seeds 1/4 inch deep in a sunny location with well-drained soil. Keep the soil moist until germination, which typically occurs in 2-4 weeks. Once seedlings are established, thin them to 12-18 inches apart. Water regularly during the first growing season, then reduce frequency as plants become drought-tolerant. Mulch around plants to conserve moisture and suppress weeds.

Riverbank Lupine requires little maintenance. Deadhead spent flowers to encourage additional blooms and prevent unwanted self-seeding. In late fall, cut back foliage after it dies back. These plants benefit from a light application of compost in early spring. Avoid overwatering, as lupines are susceptible to root rot in poorly drained soils.

What's Included

25 Riverbank Lupine seeds (Lupinus rivularis).