3000 Winged Loosestrife Seeds for Planting - Lythrum alatum Native Wildflower Purple Blooms

Winged Loosestrife (Lythrum alatum) is a native North American wildflower prized for its slender, winged stems and spikes of small, bright purple flowers. Blooming from mid-summer to early fall, it adds vertical interest and a splash of color to meadows, rain gardens, and pollinator plantings. Its nectar-rich blooms attract bees, butterflies, and other beneficial insects, making it a valuable addition to wildlife-friendly landscapes.

This hardy perennial is well-suited to moist soils and naturalized areas, where it forms clumps of narrow green leaves topped by airy flower spikes. Winged Loosestrife is an excellent choice for rain gardens, stream banks, and low-maintenance borders, providing season-long color and ecological benefits.

Plant Features

• Native perennial wildflower with purple flower spikes
• Attracts pollinators such as bees and butterflies
• Tolerates moist to wet soils
• Blooms mid-summer through early fall
• Ideal for rain gardens and naturalized areas

Growing Information

• Botanical Name: Lythrum alatum
• Plant Type: Herbaceous perennial
• Sunlight: Full sun to partial shade
• Soil: Moist to wet, well-drained
• Water Requirements: Moderate to high; keep soil consistently moist
• USDA Hardiness Zones: 4-8
• Bloom Season: Summer to early fall
• Mature Height: 2-3 feet
• Spacing: 18-24 inches

Planting & Care

Sow Winged Loosestrife seeds indoors 6-8 weeks before the last frost or directly outdoors in fall. Lightly press seeds into the soil surface; do not cover deeply, as light aids germination. Maintain consistent moisture and provide temperatures around 65-75°F (18-24°C). Germination typically occurs in 2-4 weeks. Once seedlings have several true leaves, transplant them to individual pots or into the garden after the danger of frost has passed.

Choose a location with full sun to partial shade and moist, well-drained soil. Water regularly during the first growing season to establish a deep root system. Mature plants are relatively low-maintenance; mulch to retain moisture and remove spent flowers to encourage additional blooms. Winged Loosestrife thrives in rain gardens and along water features, where its moisture requirements are naturally met.

What's Included

3000 Winged Loosestrife seeds (Lythrum alatum) for planting.