Asclepias incarnata - Shipping to Florida only.
 
Common Names: Swamp Milkweed, Rose Milkweed, Pink Milkweed, Water Silkweed
 
Zones: 3–9
 
A herbaceous perennial native to North America, Asclepias incarnata flourishes in wet meadows, marshes, and streambanks from Canada to the southeastern United States. Known for its rosy-pink flower clusters and slender upright form, it plays a vital role in supporting monarch butterflies and other pollinators. This species is a cornerstone of native plantings and ecological restoration in moist habitats.
 
Key Features
Growth Habit: Upright; clump-forming; dies back in winter
Height: Typically 3–5 ft (0.9–1.5 m); narrow vertical profile
Trunk: Herbaceous stems; green to reddish; smooth; unbranched
Leaves: Lance-shaped; opposite; 3–6 in. (7–15 cm) long; smooth-edged
Inflorescence: Dense umbels of fragrant pink flowers; bloom mid to late summer
Fruit: Slender pods (follicles); 3–4 in. (7–10 cm); split to release silky seeds
Ecology: Native to wet prairies, ditches, and riparian zones; host plant for monarchs and other Lepidoptera
 
Growing Conditions
Light: Full sun to part shade
Watering: Moderate to high; prefers consistently moist soils
Soil: Loamy or silty; tolerates clay; thrives in wet conditions
Temperature: Tolerates –30 to 95°F (–34 to 35°C); optimal range 65–85°F (18–29°C)
Humidity: Moderate to high; adapted to wetland margins
Propagation: By seed or division; cold stratification improves germination
Tolerance: Flood-tolerant; deer-resistant; attracts beneficial insects
 
Landscape Use
Best suited for wetland restorations, rain gardens, native meadows, and butterfly habitats. Its upright form and pollinator value make it ideal for ecological plantings. Pairs well with Eutrochium purpureum, Carex stricta, and Verbena hastata in moist, wildlife-friendly designs.