Photo of Asclepias incarnata close-up, flower by linnaeus

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Asclepias incarnata

Also Known As

  • Rose Milkweed
  • Swamp Milkweed
  • White Indian Hemp

Plant type

perennial

size

  • H: 2'-5'
  • W: 2'-3'

planting zones

  • 3a-9b

More Options

Asclepias incarnata plant details

Asclepias incarnata is a broadleaf deciduous perennial with blue, green and white foliage. In summer pink and purple flowers emerge followed by brown and white fruit. Attracts bees, beneficial insects and butterflies making it an excellent addition to pollinator gardens. Grows well with sun and even moisture - regular water. Adapts to various soil conditions. Does well in average, clay, gritty, rich and well-drained soil. A good option if you're seeking something heat tolerant and humidity tolerant.

CHARACTERISTICS OF Asclepias incarnata

Plant type: perennial
Plant family: apocynaceae
Foliage: deciduous blue, green and white
Mature size: 2 FT - 3 FT - wide, 2 FT - 5 FT - tall
Flowers: pink and purple blooms in summer
Uses: border plant, cottage garden, cutting garden, native plant, showy

GROWING CONDITIONS for Asclepias incarnata

USDA Zones: 3a - 9b
Sun exposure: sun
Watering frequency: even moisture - regular
Resistant to: deer and rabbit, heat and humidity
Soil needs: average, clay, gritty, rich and well-drained

Nursery contributed plant descriptions

This unusual species of milkweed features wonderfully intricate and very showy, bright-pink flowers on 2-4' stems. This species is exceptionally useful for naturalizing in moist gardens or swampy locations and it is the larval food of the regal Monarch butterfly. The perfect addition to any pollinator garden! S/M-W
The round, flat flower heads of this deep pink, native flower are deliciously scented of vanilla. Their smooth, lance-shaped leaves turn glorious colors in fall and their gracefully shaped golden seedpods are a crafter's dream, and are filled with silky seeds that catch the breeze and paraglide away!
Asclepias is one of our favorite pollinator plants for its abundant clusters of showy flowers and its ability to attract butterflies and bees into your garden. The deep rose pink petals act as a cradle for the lighter pink blossoms that reach upward in a ring of color. The narrow leaves line the stem and add delicate foliage to this heavy bloomer. Although known for growing in damp spots, we've found that once established, it does just as well in our sandier soil around the greenhouses. Blooms late June to early August and grows 2-4' tall.
This species has upright branching stems with oblong leaves topped with dense clusters of small rose pink and white vanilla-scented flowers which attract butterflies. Good in moist, wet and average soils. Deer resistant.
Marsh milkweed makes an excellent garden plant for full to part sun and moist to quite dry soils. Great in perennial borders, rain gardens, and natural areas. These are grown from seed collected in Northern Wisconsin in 2011. They are in their 3rdd year and should flower this year. The plants in the area I collected the seed had fairly dark flowers and I find them more attractive than some of the pink flowered forms in the trade. The few that have flowered have been dark flowered forms, but expect some variability. Monarch populations are at record low numbers due to habitat loss and Asclepias incarnata is an excellent host and nectar plant.
Red Milkweed attracts butterflies of all kinds and the leaves are a preferred food source for the Monarch Caterpillar. Asclepias incarnata thrives along ponds, streams and detention basins. It preferes moist soil but also does wel in average, well-drained garden sites. Full sun is best and some light shade is tolerated. No butterfly garden is complete without Red Milkweed, also known as Swamp Milkweed or Marsh Milkweed. Hardy to Zones 3 - 9.
Swamp milkweed grows 4-5 feet tall and has clusters of pinkish-purple buds that open to invite butterflies July to August. This native to the eastern U.S. tolerates clay soil, wet soil, and deer, naturalizes, and is fragrant! Aesculapius - the Greek god of medicine; incarnate - flesh-colored (well, maybe a very rosy flesh!) Its native to North American swamps and wet meadows, but will tolerate less water.

Gardening facts about Asclepias incarnata plant

How to Grow Asclepias incarnata

  • Sun Exposure

    • sun
  • Water Needs

    • even moisture - regular
  • Soil Needs

    • clay
    • adaptable
    • average
    • well-drained
    • rich
    • gritty
  • Special Situation

    • heat tolerant
    • humidity tolerant

Features

  • Foliage Color

    • white
    • green
    • blue
  • Flower Color

    • pink
    • purple
  • Wildlife

    • beneficial insects
    • bees
    • butterflies
    • deer resistant
    • rabbit resistant
  • Fruit

    • white
    • brown
  • Flower Season

    • summer
  • Foliage Season

    • deciduous
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