1250 Swamp Milkweed Seeds for Planting - Asclepias incarnata

Swamp Milkweed (Asclepias incarnata) is a native perennial prized for its clusters of pink to mauve flowers that bloom in summer. This moisture-loving plant is a favorite of pollinators, especially monarch butterflies, and adds height and color to rain gardens, pond edges, and wet meadows. Its fragrant blooms and attractive seed pods make it a standout in naturalized landscapes.

Swamp Milkweed is easy to grow from seed and is an excellent choice for gardeners looking to support local ecosystems. It thrives in consistently moist soils and full sun, making it ideal for low-lying areas or water features. The plants are deer-resistant and provide food and habitat for a variety of beneficial insects.

Plant Features

• Native perennial with pink to mauve flower clusters
• Attracts monarch butterflies and other pollinators
• Fragrant blooms in summer
• Deer-resistant and low-maintenance
• Ideal for rain gardens and wet areas

Growing Information

• Botanical Name: Asclepias incarnata
• Plant Type: Herbaceous perennial
• Sunlight: Full sun
• Soil: Moist to wet, well-drained
• Water Requirements: Moderate to high; keep soil consistently moist
• USDA Hardiness Zones: 3-9
• Bloom Season: Summer
• Mature Height: 3-5 feet
• Spacing: 18-24 inches

Planting & Care

Sow Swamp Milkweed seeds indoors 6-8 weeks before the last frost or directly outdoors in fall. Cold stratification improves germination; if starting indoors, refrigerate seeds for 30 days before sowing. Press seeds into the soil surface and keep moist. Transplant seedlings after the danger of frost has passed, spacing them 18-24 inches apart in a sunny location with moist soil.

Water regularly to maintain consistent moisture, especially during dry spells. Mulch around plants to retain soil moisture and suppress weeds. Swamp Milkweed requires little maintenance once established; cut back dead foliage in late fall or early spring.

What's Included

1250 Swamp Milkweed seeds.