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  • Close-up of vibrant pink asclepias swamp milkweed flowers with a butterfly in the background.
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Swamp Milkweed Seeds - Carmine

A tall heirloom cultivar that boasts fragrant pink florets

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About the Variety

Key Features

Frost Tolerant
Heat Tolerant
Prefers Moist Soil
Clay Soil Tolerant
Attracts Bees
Attracts Butterflies
Attracts Hummingbirds
Fragrant
Easy to Grow
Perfect for Cut Flowers
Perfect for Borders
Medicinal
Deer Resistant
Rabbit Resistant
North American Native

Plant Details

BOTANICAL NAME

Asclepias incarnata

LIFE CYCLE

  • Perennial

SEED TYPE

  • Heirloom Seed
  • Open Pollinated Seed

LIGHT REQUIREMENT

  • Full Sun

BLOOM SEASON

  • Summer through Fall

DAYS TO MATURITY

  • 90 to 120 days

GROWTH HABIT

  • Clumping
  • Upright

PLANT HEIGHT

  • 40 inches

COLOR

  • Pink

Grow Butterfly Weed Seeds - Plant Swamp Milkweed Carmine

Named Butterfly Weed for a reason, this attractive and fragrant perennial will draw butterflies (and bees, and birds!) to your garden like a magnet! Impossibly attractive to pollinators, it almost doesn't matter that Carmine Butterfly Milkweed offers lovely purple/pink blooms from summer through early fall.

  • • Tall growing perennial pollinator attractor
  • • Heirloom variety with fragrant pink & purple summer blooms
  • • Thrives in bright, sunny growing areas

Planting Information

PLANTING SEASON

  • Fall
  • Spring

SOWING METHOD

  • Direct Sow
  • Start Indoors

PLANTING DEPTH

  • 1/4 inch

WATER NEEDS

  • Low

PLANT SPACING

  • 15 to 18 inches

HARDINESS ZONES

  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

SEED PREP

  • Stratification

COVERAGE

Amount Avg Seed Count Recommended Coverage
Packet 42 Up to 80 Sq. Ft
1 Ounce 5,000 Up to 625 Sq. Ft
1/4 Pound 20,000 Up to 2,500 Sq. Ft

Planting Guide

View our Asclepias Planting Guide to learn more.

Ready to Grow

We guarantee that our seeds & bulbs will be true to type and ready to thrive. If something doesn't grow as expected, we will make it right. Questions? Call us at 855-440-2929

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    Swamp Milkweed Seeds - Carmine FAQs

    Is Carmine Swamp Milkweed resistant to animals or disease?

    Carmine Swamp Milkweed is deer resistant and rabbit resistant, meaning deer and rabbits generally avoid it due to its taste, texture, or aroma.

    Customer Reviews

    Overall rating: 2.3 / 5 from 3 reviews.

    Customer photo review of Swamp Milkweed Seeds - Carmine

    I have put my milkweed in the refrigerator to stratify. Time is almost here to plant. Sadly the package is molded. So are The seeds still Good to plant? Thanks Frankie

    Frankie 3/5

    Swamp Milkweed Seeds - Carmine

    I planted several packets of milkweed seeds, these and mixed varieties from here, following instructions to refrigerate, etc, and got two plants. And yes, somehow Monarchs still found them, and laid ther eggs, and the resulting caterpillars quickly stripped the plants bare and undoubtedly died of starvation before they could mature. Precisely why I tried to plant plenty of seeds, if only they had grown.

    Butterfly G. 1/5

    Swamp Milkweed Seeds - Carmine

    I bought these specifically to attract more butterflies and bees and was very disappointed when nothing germinated.

    Kaitlyn 1/5 Verified

    Swamp Milkweed Seeds - Carmine

    Store owner replied: Hello Kaitlyn. Thank you for your review of Eden Brothers! We greatly appreciate you bringing this to our attention. It's so important to have feedback like this so we can continually improve our products. After speaking with our Customer Service Team, it seems we were able to resolve this for you. Thanks for your time in sharing your experience with us!

    For $6 I received about 30 seeds. Fifty cents a seed. Disappointing. I later found Everwilde Farms sells about 200 seeds for $3.48. Reviewers say germination rate is high. I'm going there.

    Jan Y. 1/5 Verified

    Swamp Milkweed Seeds - Carmine

    Store owner replied: Hello, Jan Thank you for your review of Eden Brothers! We greatly appreciate you bringing this to our attention as feedback like yours helps us deliver the best quality products possible. After speaking with our Customer Service Team, it seems we were able to resolve this for you. If you have any other issues, feel free to reach out!

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