500 Heart-leaved Aster Seeds - Symphyotrichum cordifolium Native Purple Wildflower

Heart-leaved Aster (Symphyotrichum cordifolium) is a native perennial wildflower prized for its late-season display of small, pale purple to blue flowers. Also known as blue wood aster, this adaptable plant thrives in partial to full shade, making it an excellent choice for woodland gardens, naturalized areas, and pollinator-friendly landscapes. Its heart-shaped leaves and airy clusters of blooms provide texture and color when many other plants have finished flowering.

This native aster is a valuable addition to shade gardens and pollinator habitats, attracting bees, butterflies, and other beneficial insects. It naturalizes readily in the right conditions, forming loose colonies that add a natural, meadow-like feel to the landscape.

Plant Features

• Native perennial wildflower with heart-shaped leaves
• Produces clusters of small, pale purple to blue flowers in late summer and fall
• Thrives in partial to full shade
• Attracts pollinators such as bees and butterflies
• Naturalizes well in woodland and shade gardens

Growing Information

• Botanical Name: Symphyotrichum cordifolium
• Plant Type: Perennial
• Sunlight: Partial Shade to Full Shade
• Soil: Moist, well-drained soil; tolerates a range of soil types
• Water Requirements: Medium; keep soil consistently moist during establishment
• Growth Habit: Upright, clump-forming
• USDA Hardiness Zones: 3-8
• Bloom Season: Late Summer to Fall
• Mature Height: 1-3 feet
• Spacing: 12-18 inches

Planting & Care

Sow seeds indoors in late winter or directly in the garden in fall. Lightly press seeds into the soil surface; do not cover deeply, as light aids germination. Keep the soil consistently moist but not waterlogged. Germination can be slow and uneven; cold stratification may improve results. Once seedlings are large enough to handle, transplant them to their permanent location after the danger of frost has passed.

Heart-leaved Aster prefers partial to full shade and moist, well-drained soil. Water regularly during the first growing season to help establish a strong root system. Mulch around plants to conserve moisture and suppress weeds. Deadhead spent flowers to prevent unwanted self-seeding, or leave seed heads for birds. Divide clumps every few years to maintain vigor.

What's Included

500 Symphyotrichum cordifolium seeds.