Swamp Milkweed is a native perennial wildflower known for its clusters of fragrant, pink to mauve flowers that bloom in mid to late summer. Unlike Common Milkweed (Asclepias syriaca), Swamp Milkweed has a more refined, upright growth habit and thrives in moist environments, making it an excellent choice for rain gardens, wetlands, and pollinator-friendly landscapes.
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Growth Habits & Characteristics:
•Height: 3–5 feet
•Spread: 2–3 feet
•Sun Requirements: Full sun to partial shade
•Soil Preferences: Moist to wet soils; tolerates clay, loam, and sandy soils
•Lifespan: Perennial
•Bloom Time: Mid to late summer (June–August)
•Water Needs: Moderate to high; thrives in wet conditions but can tolerate periodic dryness
•Growth Habit: Upright, clump-forming, with lance-shaped leaves and deep pink flowers
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Host Insect:
Serves as a host plant for Monarch butterfly caterpillars.
Pollinator Importance:
•Attracts a variety of native bees, including bumblebees and sweat bees.
•Visited by butterflies, moths, and hummingbirds seeking nectar.
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Companion Plants:
•Cardinal Flower
•Ironweed
       •Buttonbush 
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Ecological Importance:
•Monarch Butterfly Habitat: A critical larval host plant, helping sustain Monarch populations.
•Pollinator Magnet: Provides nectar for a diverse range of bees, butterflies, and hummingbirds.
•Erosion Control: Deep roots help stabilize soil in wetland and riparian areas.
•Water Filtration: Helps filter pollutants from runoff in wetland ecosystems.
•Biodiversity Support: Enhances the ecological health of wet meadows, streambanks, and rain gardens.