Asclepias perennis

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Common Name: Aquatic Milkweed, Swamp Milkweed

Full sun to light shade, wet to moderately wet moisture, loamy or sandy soil, pH adaptable.  1 to 3 feet height, white flowers, blooms for 1-2 months in late spring to mid-summer.

Germination Code:  C(30)

Native Region: West Tennessee

This attractive milkweed is easy to identify with its dark, purplish green stem and large pink spot at the tip of the flower buds which open to white.  It is a wetland plant, occurring in floodplains, water way margins, marshes, swamps, ditches and other wetlands.   Can only grow in full sun if it is continuously wet, otherwise prefers partial to full shade.  Flowers are mildly fragrant.  Under favorable growing conditions, plant forms a woody crown with more and more flowering stems each year.  Important plant for bees and butterflies, especially the Monarch butterfly.

Aquatic Milkweed, Swamp Milkweed - Asclepias perennis 3
Photo Courtesy of Lady Bird Johnson Wildflower Center http://www.wildflower.org/
Asclepias perennis
Photo Courtesy of Lady Bird Johnson Wildflower Center http://www.wildflower.org/
Aquatic Milkweed, Swamp Milkweed - Asclepias perennis
Photo Courtesy of Lady Bird Johnson Wildflower Center http://www.wildflower.org/
Asclepias perennis - Aquatic Milkweed, Swamp Milkweed
Photo Courtesy of Lady Bird Johnson Wildflower Center http://www.wildflower.org/