asclepias-incarnata-swamp-milkweed-1
asclepias-incarnata-swamp-milkweed-1
asclepias-incarnata-swamp-milkweed-1
asclepias-incarnata-swamp-milkweed-1

Swamp Milkweed

American Beauties Native Plants®
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  • Asclepias incarnata
  • North American Native
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Pairs well with

Clusters of fragrant pink flowers bloom in mid-summer, providing essential food for Monarch caterpillars. This native perennial thrives in wet, clay soils and adds height to the border.

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Size at Maturity

Height 3'- 4' Spread 1'- 2'

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Growing Zone

USDA Hardiness Zones 3-8

Lowest Temperatures -40°F to -30°F

Light Requirements

Full sun to part sun- at least 4 hours direct sun per day

Host Plant For

Monarch butterfly, Queen butterfly, Milkweed Tussock Moth

Wildlife Benefits

  • Supports Bees
  • Attracts Hummingbirds
  • Attracts Butterflies

Native Range

AL, AR, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY

Special Conditions

  • Deer Resistant
  • High Salt Tolerance
  • Wet Soil

Fragrant

Seasons of Interest

  • Summer

How to Plant

Give your new plant the best start possible. Click here for general planting instructions.

Grow With Confidence

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Planting and Care Guide

Planting Tips

Plant in moist to wet, average to fertile soil. Space 18–24 inches apart. Water thoroughly after planting. Also grows well in average garden soil with consistent moisture.

Care Tips

Water consistently- swamp milkweed prefers moist conditions but adapts to average garden soil once established. Deadhead spent flower clusters for continued bloom. Cut to the ground in late fall or early spring. Divide every 3–4 years in spring. Largely pest-free except for occasional aphid colonies on new growth- beneficial insects typically manage these naturally. The rosy-pink flower clusters are excellent for monarch butterflies and all pollinators. An essential native plant for supporting monarch populations.

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