Black-Eyed Susan Vine Seeds

Thunbergia alata

Inspiring poets with its beauty, this 1800s heirloom can be enjoyed in window boxes, hanging baskets, as a ground cover, as a screen, on a trellis or fence, and decorating mailboxes and columns. You will be rewarded with lush foliage and masses of blooms all summer long in vibrant orange, yellow, and white; the colorful petals make a striking contrast to the black "eye".

$2.69 ~20 seeds
3.9
Rated 3.9 out of 5 stars
31

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Features

Family

Acanthaceae

Native

Africa

Life Cycle

Life Cycle

Annual

Plant Height

Plant Height

Vine

Flower Color

Flower Color

Mixed

Bloom Season

Bloom Season

Summer to frost

Further Information

Plant Characteristics

Plant Characteristics

  • Attracts Pollinators
  • Cut Flower

About Vine

Thunbergia alata

1"–1½" wide, vibrant white, yellow, and orange flowers, some with and some without a contrasting black "eye".

Planting Vine

Plant Spacing

1 seed every 6"

Hardiness Zones

Hardiness Zones

10, 11

Light Required

Light Required

Full sun to part shade

Plant Height

Plant Height

Vine

Planting Depth

Planting Depth

⅛"

Planting Details

Seed Depth ⅛"
Seed Spacing 1 seed every 6"
Thinning Not required
Germination 15–20 days
Start Indoors 6 to 8 weeks before your average last frost date. Transplant outside after average last frost. Use biodegradable pots to prevent root disturbance when transplanting.
Direct Sow RECOMMENDED. 1 to 2 weeks after your average last frost date, and when soil temperature is 65°–80°F.

Find Your Frost Date & Grow Zone

3.9
Rated 3.9 out of 5 stars
Based on 31 reviews
Total 5 star reviews: 19 Total 4 star reviews: 2 Total 3 star reviews: 3 Total 2 star reviews: 2 Total 1 star reviews: 5
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Rating
Ratings
Which best describes you as a gardener?
Which best describes you as a gardener?
31 reviews
  • Donita
    Rated 5 out of 5 stars
    1/17/26
    5 Stars

    Great little vine!

  • Melanie A.
    WA, United States
    Verified Buyer
    Rated 3 out of 5 stars
    9/26/25
    Underwhelmed

    Having seen this vine last year in person, I was so excited to try it. I have a pack to a friend as well, and we both experienced a very LONG germination period and then it seemed to take the plant months to even get more than 4 inches long. It could have been user error as once I put the plant in direct sunlight all day, it did pick up its growing time and I did get a few flowers but I am a little disappointed. I will try again next year.

    I will add that out of 10 seeds, only 3 sprouted and my friend said the same thing. Germination was poor and I used very good soil.

    Which best describes you as a gardener? Intermediate
    Who do you grow for? Yourself
    How do you prefer to grow? Raised Bed
    BI Profile picture for Botanical Interests
    Botanical Interests
    9/29/25

    Hey Melanie,

    Thank you so much for taking the time to share your thoughts in a review. I've reached out to you via email to offer assistance. Your feedback is invaluable to us, and we are committed to ensuring your experience is positive. Thank you once again for your input. Keep on growing 🌻️

  • KRISTEN C.
    Verified Buyer
    Rated 5 out of 5 stars
    1/4/25
    5 Stars

    I love Epic Gardening!

  • MK
    Rated 5 out of 5 stars
    10/5/24
    5 Stars

    I planted some seeds along a fence line in untreated, neglected soil and forgot about them for weeks. Around middle of summer, these popped up out of nowhere and took off! They have become one of my favorites in the yard, and they attract a lot of butterflies. I regret not planting more and planting earlier, but I will be reordering more next year for sure.

    Zone 7a in Midwest.

    Which best describes you as a gardener? Beginner
  • Chris
    Rated 2 out of 5 stars
    8/28/24
    2 Stars

    This vine doesn’t like climbing at all. I frequently have to train it as it’s always sprawling on the ground. It would do better in a hanging pot.

    It is slow to start. I have it in 4 locations and it doesn’t seem to thrive in full sun, part shade or afternoon shade. The best plant is only about a foot tall and on north end of pole bean line on the south and full sun. It’s end of August and started flowering a few weeks ago.

    I have been more adventurous in trying new to me flowers and find many seem to need a longer growing season whether starting from seed inside or out. Some flowers just start kicking in and the frost hits them. This flower is native to warm regions and we can be a bit warm here so I don’t understand why they don’t flourish. The real picture in the advertisement above is not the same vine so not sure why it’s shown. I’m Z5a, WI and sandy loam.

    Which best describes you as a gardener? Expert
    BI Profile picture for Botanical Interests
    Botanical Interests
    9/6/24

    Hey Chris,

    Thank you so much for taking the time to share your thoughts in a review. I've reached out to you via email to offer assistance. Your feedback is invaluable to us, and we are committed to ensuring your experience is positive. Thank you once again for your input. Keep on growing 🌻️

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