Origin: US Native
Other Common Names: Sullivant's Milkweed, Smooth Milkweed
Duration: Perennial
Bloom Time: July-August
Height: 2' to 3'
Spacing: 18” to 24”
Light: Full Sun
Soil Moisture: Medium
USDA Zone: 4a-9b
Germination: No pre-treatment needed. Sow seeds just below the soil surface at 70F and water.
Seeds Per Oz: 4500
This species of milkweed is named after the 19th century American botanist William Starling Sullivant. Preferring moist prairie areas, this wildflower is commonly found in river bottom-lands and wet meadows. It differs from common milkweed in it's smooth stems, leaves, and seed pods, upward sweeping red-veined leaves, and larger flowers. It's fragrant rose or mauve colored blooms attract butterflies and birds, and are a host plant for monarch larvae. When ripe, it's seed pods split open, releasing the downy silk and seeds milkweed is so famous for. Prized in dried floral arrangements!