Asclepsias incarnata - Swamp Milkweed

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Type: Perennial
Native Range: Native to New York and eastern North America
Sun: Full Sun to Partial Sun
Soil: Medium to Wet
Height: 3–5 ft
Bloom Time: July–August
Flower Color: Pink
Spacing: 18–24 inches
Deer Resistance: Low to Moderate
Pollinator Value: Very High
Host Plant: Monarch butterflies

Description

Swamp Milkweed (Asclepias incarnata) is a tall native perennial known for its fragrant clusters of pink flowers in mid to late summer. It naturally grows in moist meadows and along streambanks but adapts well to average garden soils. The flowers attract a wide variety of pollinators, and the leaves serve as an important host for monarch butterfly caterpillars. Swamp Milkweed is one of the best native plants for pollinator gardens and moist landscapes.

Ecological Benefits

Wildlife Value

  • Host plant for monarch butterfly caterpillars 🦋

  • Attracts native bees

  • Attracts butterflies

  • Supports beneficial insects

  • Important summer nectar source

Garden Uses

  • Pollinator gardens

  • Native plant gardens

  • Rain gardens

  • Meadow plantings

  • Moist borders

Why We Grow It

We grow Swamp Milkweed because it is one of the most valuable native plants for pollinators and monarch butterflies. It is adaptable, long-lived, and produces showy summer flowers that attract a wide variety of insects.