Plant Calculator

Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Asclepias incarnata you will need.

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*Correct and successful spacing is complex and depends on project conditions.

Asclepias incarnata

Swamp Milkweed

Asclepias incarnata, commonly known as Swamp Milkweed, is a perennial plant native to wetlands across North America. Its striking clusters of pink flowers attract various pollinators, especially monarch butterflies, making it a vital addition to butterfly gardens. This hardy plant thrives in moist soil and can grow up to 4 feet tall, showcasing lance-shaped leaves that complement its floral display. Ideal for naturalizing or stabilizing shorelines, Swamp Milkweed is not only beautiful but beneficial to the ecosystem.

  • Beautiful native perennial
  • Attractive seed pods
  • Food source for Monarch butterflies
  • Great for naturalizing

  • Category: Perennials
  • Hardiness Zone: 3-9
  • Height: 3-4 ft
  • Spread: 24-36 in
  • Bloom Color: Pink, Purple
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Attracts Wildlife
Attracts Butterflies
Exposure
Full Sun
Partial Sun
Foliage Color
Green
Soil Moisture
Wet Soil/Wetlands
Habit
Upright
Season of Interest (Foliage)
Spring Bloomer
Growing & Maintenance Tips for Asclepias incarnata

To care for Asclepias incarnata, commonly known as milkweed, ensure it is planted in well-drained soil and receives full sun. Water the plant regularly, especially during dry spells, and prune any dead stems to promote healthy growth. This native plant attracts pollinators and provides a habitat for monarch butterflies, making it an excellent addition to your garden.