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Botanical Interests

Tweedia Milkweed/Butterfly Flower Seeds

Tweedia Milkweed/Butterfly Flower Seeds

$5.49
$5.49
(~15 seeds)
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Product Details

True-blue flowers are rare and these aquamarine gems will sparkle in the garden. Flower buds and older flowers are lavender, adding extra flair. Blue milkweed, also known as star of Argentine and southern star, draws in pollinators to its sweetly scented flowers, but unlike other milkweeds, it is not considered critical for monarch caterpillars. This cutting flower adds the perfect "something blue" to floral arrangements. Perennial in USDA zones 10–11; otherwise grown as an annual. In areas where perennial plants are vining shrubs, they may reach 10' over time. Sap is toxic; avoid eye/skin contact and do not ingest. Deer resistant.
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  • Variety Info
  • Sowing Info

Variety Info

Family: Apocynaceae

Native: Brazil and Uruguay

Hardiness: Perennial in USDA zones 10–11; often grown as an annual

Exposure: Full Sun to Part Shade

Bloom Period: Summer

Plant Dimensions: 28" when grown as an annual. In areas where plants are perennial they become a vining shrub, growing to 10' over time.

Variety Info: Aquamarine flowers approximately ½"–1" wide which fade to purple as they age

Attributes: Attracts Pollinators, Cut Flower, Deer Resistant

Sowing Info

When to Sow Outside: 2 to 4 weeks before your average last frost date. Mild Climates: Fall for spring germination.

When to Start Inside: 6 to 8 weeks before your average last frost date.

Days to Emerge: 21 – 28 Days

Seed Depth: ¼"

Seed Spacing: A group of 2 to 3 seeds every 12" – 24"

Thinning: When seedlings have 3 sets of leaves, thin to one every 12" – 24"

3.8
Rated 3.8 out of 5 stars
Based on 5 reviews
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 2 Total 1 star reviews: 0
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5 reviews
  • Sarah G.
    Verified Buyer
    Rated 5 out of 5 stars
    Apr 17, 2024
    5 Stars

    Heavenly Blue Tweedia Milkweed for the win! 100 % germination!

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    Which best describes you as a gardener? Intermediate
  • Zachary B.
    Verified Buyer
    Rated 2 out of 5 stars
    May 9, 2024
    2 Stars

    I had such a low germination rate on the seats. It was pretty disappointing, considering I’ve grown them in the past, and had no other problems with other types of milkweed. The price for only 15 seeds and only two seeds that germinated left me pretty disappointed. Love the company and the packaging, but this was, a drag .

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    Which best describes you as a gardener? Expert
  • Cindy W.
    Rated 5 out of 5 stars
    May 23, 2023
    5 Stars

    Love this plant!! The blue flowers look like velvet. Grew these many years ago but could not find the seeds. Found them on your site and ordered them immediately.

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  • Jenese
    Verified Buyer
    Rated 2 out of 5 stars
    May 9, 2022
    2 Stars

    I bought a pack of seeds these are more than others and they are not coming up, I have 1 out of all of them that's trying to grow!!! I bought about 10 packs of seeds most are not doing anything! The ironic thing is the moon flowers and trumpet vines are growing and quickly! Supposedly these were the hard ones to grow, so not sure but at $45 for seeds for what I bought I won't do it again! I will go to Walmart Home Depot etc! I bought these seeds thinking for surely this will work and be beautiful! The tweedia seeds 4 59 a pack so I'm disappointed

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  • Sue
    Verified Buyer
    Rated 5 out of 5 stars
    May 9, 2022
    5 Stars

    I only planted 4 seeds (after soaking seeds in water for 5 days to kick start germination ) and I got a lovely full hanging basket full of blue flowers. Small butterflies and bumblebees love it.

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