500 Tall Bellflower Seeds - Campanulastrum americanum Native Blue Wildflower for Shade

Tall Bellflower (Campanulastrum americanum) is a native North American wildflower prized for its tall spikes of blue, star-shaped flowers. Blooming from summer into early fall, it adds vertical interest to shaded borders, woodland gardens, and naturalized areas. Its nectar-rich blooms attract pollinators such as bees and butterflies, making it a valuable addition to wildlife-friendly landscapes.

This biennial or short-lived perennial typically grows 3 to 6 feet tall, thriving in partial shade to full sun and average, well-drained soil. Tall Bellflower is an excellent choice for cottage gardens, rain gardens, and native plant collections.

Plant Features

• Native wildflower with blue, star-shaped blooms
• Attracts bees and butterflies
• Tolerates partial shade
• Tall, upright growth habit
• Blooms summer to early fall

Growing Information

• Botanical Name: Campanulastrum americanum
• Plant Type: Biennial or short-lived perennial
• Sunlight: Partial shade to full sun
• Soil: Average, well-drained soil
• Water Requirements: Moderate; keep soil consistently moist
• Growth Habit: Upright
• USDA Hardiness Zones: 3-8
• Bloom Season: Summer to early fall
• Mature Height: 3-6 feet
• Spacing: 18-24 inches

Planting & Care

Sow seeds indoors 6-8 weeks before the last frost or directly outdoors in fall or early spring. Lightly press seeds into the soil surface; do not cover deeply, as light aids germination. Keep soil moist until germination. Transplant seedlings after the danger of frost has passed, spacing them 18-24 inches apart. Tall Bellflower prefers partial shade but can tolerate more sun in cooler climates. Water regularly during dry spells, and apply mulch to retain moisture. Stake tall plants if grown in exposed sites.

What's Included

500 Tall Bellflower seeds (Campanulastrum americanum).