Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Acanthaceae
Native
Africa
Life Cycle
Annual
Plant Height
Vine
Flower Color
Mixed
Bloom Season
Summer to frost
Further Information
Plant Characteristics
- Attracts Pollinators
- Cut Flower
About Black-Eyed Susan Vine Seeds
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
10, 11
Light Required
Full sun to part shade
Plant Height
Vine
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
Average First Frost Date
October 19
Average Last Frost Date
May 19
Your Hardiness Zone is
5b
Send Your Recommendation
Total 5 star reviews: 19 Total 4 star reviews: 2 Total 3 star reviews: 4 Total 2 star reviews: 2 Total 1 star reviews: 5
Slide 1 selected
Search
Rating
32 reviews
- Bri L.MN, United StatesVerified BuyerRated 3 out of 5 stars5/19/26Got Maybe Five Seeds
I was super surprised to open the inner packet and find a total of about five seeds and some chaffe. The outer packet and listing both say 20 seeds per packet, but I got no more than five and some chaffe/outer seed pod husk bits. Really bummed. I want to support Epic and Botanical Interests but hope to see improvement in seed quantity going forward.
Which best describes you as a gardener? IntermediateWho do you grow for? FamiliesHow do you prefer to grow? Raised BedBIBotanical Interests5/25/26Hey Bri,
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 🌻️
- DonitaRated 5 out of 5 stars1/17/265 Stars
Great little vine!
- Melanie A.WA, United StatesVerified BuyerRated 3 out of 5 stars9/26/25Underwhelmed
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? IntermediateWho do you grow for? YourselfHow do you prefer to grow? Raised BedBIBotanical Interests9/29/25Hey 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 BuyerRated 5 out of 5 stars1/4/255 Stars
I love Epic Gardening!
- MKRated 5 out of 5 stars10/5/245 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