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Asclepias incarnata is a food source for Monarch butterfly caterpillars and a nectar source for adult butterflies. Also called Swamp Milkweed, this milkweed actually grows well in both moderately moist and wet soils. This perennial milkweed is also an excellent choice for rain gardens.
Native Range for Asclepias incarnata (Swamp Milkweed) - AL, AR, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY.
|Common Name||Swamp Milkweed|
|Botanical Name||Asclepias incarnata|
|Zones||3, 4, 5, 6, 7, 8, 9|
|Light Requirements||Full Sun, Half Sun / Half Shade|
|Mature Height||36-42" tall|
|Estimated Mature Spread||24-30" wide|
|Bloom Time||Mid to late summer|
|Planting Depth||Crown of plant should rest just at or above the soil surface after watering in.|
|Ships As||Potted Plant|
|Foliage||Narrow green leaves are lance-shaped.|
|Planting Time||Spring / Summer|
|Soil Type||Clay Soil, Loamy Soil, Well-Drained Soil, Moist/Wet Soil|
|Soil Moisture||Average, Moist/Wet, Well Draining|
|Advantages||Deer Resistant, Attract Butterflies, Bee Friendly, Fragrant, Native|
|Neonicotinoid-Free||Yes - Learn More|
|Ships to Hawaii, Alaska & Canada||No|
Shipping begins in late March based on ground temperatures, warmest zones first.
As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat. The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.
Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.View Shipping Rate Chart
To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.
Enter your Zip Code to find your USDA Planting Zone
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