500 Tall Bellflower Seeds – Native Blue Wildflower for Woodland Pollinator Gardens

Tall Bellflower (Campanula americana) is a native North American wildflower prized for its tall, graceful stems and star-shaped blue to lavender blooms. Also known as American bellflower, this biennial or short-lived perennial brings vertical interest to woodland gardens, native plantings, and pollinator-friendly landscapes. Its flowers open in succession along the stem, creating a long-lasting display from early summer into fall.

This native wildflower is an excellent choice for shaded borders, rain gardens, and naturalized areas. The nectar-rich flowers attract bees, butterflies, and hummingbirds, while the seeds that follow provide food for birds. Tall Bellflower self-sows readily in suitable conditions, gradually forming welcoming colonies that support local ecosystems.

Plant Features

• Native North American wildflower with blue to lavender star-shaped blooms
• Tall, upright growth habit that adds vertical interest to shaded gardens
• Attracts pollinators including bees, butterflies, and hummingbirds
• Self-sows readily to form naturalized colonies over time
• Well-suited to woodland gardens, native plantings, and rain gardens

Growing Information

• Botanical Name: Campanula americana
• Plant Type: Biennial or short-lived perennial wildflower
• Sunlight: Partial shade to full sun
• Soil: Moist, well-drained soil rich in organic matter
• Water Requirements: Medium; keep soil consistently moist
• Growth Habit: Upright, tall stems
• Bloom Season: Summer to early fall
• Mature Height: 3 to 6 feet
• Spacing: 12 to 18 inches apart

Planting & Care

Sow Tall Bellflower seeds on the surface of moist, well-drained soil, as light aids germination. Press seeds gently into the soil without covering them deeply. Keep the growing medium consistently moist until germination occurs. For best results, start seeds indoors 6 to 8 weeks before the last frost or sow directly in the garden in fall for natural stratification.

Once seedlings are established, thin or transplant them to 12 to 18 inches apart. Provide partial shade in hot climates and consistent moisture, especially during dry spells. Tall stems may benefit from staking in windy or exposed sites. Allow some flowers to go to seed to encourage self-sowing and support local pollinators and birds.

What's Included

500 Tall Bellflower seeds (Campanula americana).