Milkweed Seeds

$6.99 CAD

Milkweed seeds of four different species native to Canada.

Milkweed is a biodiversity hub that sustains its own ecosystem, including many wild pollinators. They also are the exclusive host plants of monarch butterflies (Danaus Plexippus), an endangered species that rely on milkweed's sap to feed, self-heal and protect themselves from their predators.

In addition to growing beautiful and delightfully fragrant flowers in your garden you will contribute, by planting milkweed you will help preserve one of North America's most iconic animal. The scarcity of their host plant has been identified as the main cause of the monarch butterfly 90% population decline in the last decades.

Botanical information

Common Milkweed

  • Latin name: Asclepias syriaca
  • Other names: Common milkweed, butterfly flower, silkweed, silky swallow-wort, Virginia silkweed
  • Type : Perennial
  • Hardiness: Zone 2
  • Light: Full Sun
  • Height: 2 to 5 feet
  • Width: 12 to 16 inches
  • Blooming period: June to August
  • Bloom color: Pink
  • Propagation level: High
  • Soil: All, but prefers well-drained

Swamp milkweed

  • Latin name: Asclepias incarnata
  • Other names: rose milkweed, rose milkflower, swamp silkweed, white Indian hemp
  • Type : Perennial
  • Hardiness: Zone 3
  • Light: Sun, Semi-shade
  • Height: 16 to 40 inches
  • Width: 6 to 15 inches
  • Blooming period: July to September
  • Bloom Color: Pink and white
  • Propagation level: Low
  • Soil: Clay, moist, wet, swamp

Butterfly Milkweed

  • Latin name: Asclepias tuberosa
  • Other names: butterfly weed, Canada root, chieger flower, chiggerflower, fluxroot, Indian paintbrush, Indian posy, orange milkweed, orange root, orange Swallow-wort, pleurisy root, silky swallow-wort, tuber root, yellow milkweed, white-root, windroot, butterfly love, butterflyweed
  • Type : Perennial
  • Hardiness: Zone 3
  • Light: Full Sun
  • Height: 12 to 30 inches
  • Width: 12 to 16 inches
  • Blooming period: July to August
  • Bloom color: Orange
  • Propagation level: Very Low
  • Soil: Dry, rocky, alkiline

Common Milkweed

  • 1 compostable seed packet made in Canada with enviro kraft paper
  • 60-70 seeds (1.25 mL)

Butterfly and Swamp Milkweed

  • 1 compostable seed packet made in Canada with enviro kraft paper
  • About 50 seeds (1 mL)

Additional information

Customer Reviews

Based on 200 reviews

I thought I was receiving these as a bomb but it appears they're just seeds.


Waiting for them to grow


Having good résultats Althea seeding

J en ai déjà acheté, et les graines n’ont jamais levé

J e ai déjà acheté et les graine n’ont jamais levé


Arrivée rapide!

Responsible and cruelty-free

The oil used to manufacture synthetic insulation is getting scarcer and more expensive, while down is questionable from an ethical standpoint. Milkweed can be farmed industrially in a win-win formula for nature and humans and performs better than its counterparts.

Respectful of monarchs

By purchasing a Lasclay product, you are directly helping the monarchs, an endangered species. An abundance of milkweed in rural areas provides them with invaluable breeding grounds before their great migration, after which we harvest the floss.