Asclepias Seeds – Incarnata

Asclepias incarnata, commonly known as Swamp Milkweed, is a native perennial valued for its clusters of pink to rose-colored flowers that attract butterflies, bees, and other pollinators. This variety thrives in moist soils and performs beautifully near ponds, rain gardens, and naturalized areas. Known for its ecological benefits, it serves as a host plant for Monarch butterfly caterpillars, making it a great addition to pollinator-friendly gardens. Asclepias incarnata adds both beauty and purpose to any landscape with its upright growth and rich nectar production.

Features:

• Produces attractive clusters of pink to rose-colored blooms.

• Attracts butterflies, especially Monarchs, along with bees and hummingbirds.

• Grows well in moist to wet soils and tolerates seasonal flooding.

• Ideal for rain gardens, wetlands, and natural landscapes.

• Low-maintenance and drought-tolerant once established.

• Native perennial that supports local ecosystems.

Specifications:

• Scientific Name: Asclepias incarnata

• Common Name (US): Swamp Milkweed

• Plant Type: Perennial

• Bloom Color: Pink to rose

• Bloom Time: Mid-summer to early fall

• Plant Height: 3–5 feet (90–150 cm)

• Sunlight Requirement: Full sun to partial shade

• Soil Type: Moist to wet, well-drained soil

• Watering: Moderate to high; prefers consistent moisture

• Germination Time: 14–28 days

• Days to Bloom: 80–100 days from sowing

• Sowing Method: Start indoors 6–8 weeks before last frost or direct sow after frost danger passes

• Spacing: 18–24 inches apart

• Growing Season: Spring to Fall

• USDA Hardiness Zones: 3–9

• Best Planting Months (by Zone):

  • Zones 3–5: April to June

  • Zones 6–8: March to May

  • Zones 9: February to March

• Uses: Pollinator gardens, rain gardens, naturalized areas, wetland restoration, and wildlife-friendly landscapes