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Asclepias incarnata

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swamp milkweed

Image Source: North Creek Nursery, New Moon Nursery

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height
width
3'-5'
1'-3'
sun exposure
soil moisture
Full Sun 6+, Part Sun 4-6
Average, Moist, Wet
bloom season

June, July, August

description

Swamp Milkweed (Asclepias incarnata) is an eye-catching native perennial and an essential host plant for Monarch butterflies, as all members of the Asclepias genus are! With its upright, clump-forming habit and vibrant pink flower clusters, it makes a show-stopping addition to any sunny garden.


Naturally found in floodplains, swamps, and wet meadows, Swamp Milkweed thrives in moist soils but readily adapts to average garden conditions. Blooming from June through August in full sun to part sun, its fragrant pink blooms rise above branching stems lined with slender, willow-like foliage.


In fall, long brown seed pods form and split open, releasing silky seeds that drift gracefully on the wind. Beyond its beauty, Swamp Milkweed plays a vital ecological role, supporting Monarchs as well as several other butterfly and moth species, while attracting a wide array of pollinators, especially native bees. It’s not just a stunning garden plant, it’s essential for the local ecosystem!

ecological benefits

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