Butterfly Weed (Asclepias tuberosa)

Butterfly Weed (Asclepias tuberosa)

SEEDS (Iowa)
Item #:ASTUBs

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Asclepias tuberosa


Our current seed supply is from Iowa
Butterfly weed is a very striking native perennial and one of our most popular plants.

Milkweeds are host plants for the monarch butterfly, and butterfly weed seems to be the poster child for attracting monarchs to the landscape. While monarch caterpillars will devour the foliage, deer tend to avoid it because it is bitter and nasty.

It was important medicinally to native Americans and has been used to treat bronchitis, pleurisy, and other lung ailments.

Uses: butterflies, pollinators, showy flowers, host plant, medicinal
Bloom time: June & July

Height: 2 to 3 feet
Space: 1.5 to 2.5 feet

Sun: Full sun to light shade
Moisture: Average

Seed: Much of the seed is ready to germinate, but cold moist stratification will help to ensure that all the seed germinate. Sow seed anytime November through February or stratify in the refrigerator with moist potting soil or sand for 2 to 4 weeks.
  • 200 seeds per packet
  • 5,625 seeds per ounce
  • 1 ounce per 200 square feet
  • 1 lb. per 3,000 square feet

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