Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Asteraceae
Native
North American Prairies
Life Cycle
Perennial
Plant Height
Tall (Greater than 24")
Flower Color
Yellow
Bloom Season
Summer to frost
Further Information
Plant Characteristics
- Attracts Butterflies
- Attracts Pollinators
- Cut Flower
Plant Resistance
Deer Resistant
About Indian Summer Black-Eyed Susan Seeds
Rudbeckia hirta
6"–9" golden yellow flowers with rich brown centers
Planting Black-Eyed Susan
Plant Spacing
A group of 3 seeds every 12"–24"
Hardiness Zones
4, 5, 6, 7, 8, 9
Light Required
Full sun
Plant Height
Tall (Greater than 24")
Planting Depth
Press into surface
Planting Details
| Seed Depth | Press into surface |
|---|---|
| Seed Spacing | A group of 3 seeds every 12"–24" |
| Thinning | When 1" – 2" tall, thin to 1 every 12"–24" |
| Germination | 10–15 days |
| Start Indoors | RECOMMENDED. 8 to 10 weeks before your average last frost date. |
| Direct Sow | 2 to 4 weeks before your average last frost date, and as late as 2 months before your first fall frost date. |
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: 11 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 2
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Rating
14 reviews
- Kerry L.Rated 5 out of 5 stars5/12/26Fingers crossed!
Year 3, 6B container amateur here again! They hit dirt on 3/28, Were shuffled in & out until the lows have been above 40F. They are picking up speed now!
BIBotanical Interests5/12/26Hey Kerry,
Another success story with our Indian Summer Black-Eyed Susan Seeds! We're so excited to hear they're picking up speed now that those lows are staying above 40F. Your persistence is going to pay off beautifully! Thanks for sharing your Black-Eyed Susan growing journey with us! Keep on growing 🌻️
- Brian K.Verified BuyerRated 5 out of 5 stars11/2/25Great germination
Good germination this autumn and excited to see these grow into full bloom next summer
Which best describes you as a gardener? IntermediateBIBotanical Interests11/2/25Hey Brian,
Thank you so much for this fantastic 5-star review! "Good germination this autumn" with the excitement of looking forward to seeing them "grow into full bloom next summer" is exactly what we love to hear about Indian Summer Black-Eyed Susan Seeds - and we absolutely love that you're already seeing such promising germination success with your fall planting!
That's exactly the kind of rewarding start that shows these perennial beauties are settling in perfectly for their spectacular summer show! There's nothing quite like getting that early confirmation of strong germination and knowing you have those gorgeous golden blooms with dark centers to look forward to when the warm weather returns!
It's so exciting that you planted them this autumn - Indian Summer Black-Eyed Susans really do benefit from that fall establishment time, and you're going to be absolutely thrilled when they burst into their full summer glory with those cheerful, long-lasting flowers that are such magnets for butterflies and beneficial insects! Your germination success and growing anticipation will be so inspiring for other gardeners who want to discover just how reliable and rewarding Indian Summer Black-Eyed Susan Seeds can be for creating those stunning, season-long displays!
Keep on growing 🌻️
- Michele O.Verified BuyerRated 5 out of 5 stars9/26/25Nice seeds
These seeds had great germination and made nice sturdy seedlings. Planted out and growing well. Hopefully will flower next season.
Which best describes you as a gardener? IntermediateBIBotanical Interests9/29/25Hey Michele O.,
What a fantastic review! We're absolutely thrilled to hear that your Indian Summer Black-Eyed Susan Seeds delivered such excellent germination and produced those strong, sturdy seedlings - that's exactly what sets you up for gardening success!
Your experience with the vigorous start these seeds gave you is so encouraging to hear! There's nothing more satisfying than watching seeds perform exactly like they should, and strong germination followed by robust seedling development is everything when it comes to establishing healthy perennials. The fact that they're growing well after transplanting really shows what resilient performers these Black-Eyed Susans are.
We love your patience in waiting for next season's blooms - that's the mark of an experienced gardener who understands that the best perennials focus on building strong root systems in their first year! When those sunny yellow flowers with their dark centers finally appear, they're going to be absolutely spectacular. Indian Summer Black-Eyed Susans are such reliable bloomers once established, and with the strong foundation you've already built, you're going to have gorgeous displays for years to come.
Your success with getting these beauties off to such a healthy start will be so encouraging for other gardeners who want to add these cheerful, long-lasting perennials to their landscape!
Keep on growing 🌻️
- Marcy M.Verified BuyerRated 1 out of 5 stars2/7/251 Star
Planted seeds as directed on the package and none grew. I have grown flowers from seed prior and these did not grow. I was looking to grow seeds to increase natives in my yard and avoid plastic pots from buying plants locally. Not worth the effort when seeds don’t sprout.
BIBotanical Interests2/11/25Hey Marcy,
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 🌻️
- Kevin Z.Verified BuyerRated 4 out of 5 stars12/15/244 Stars
The seeds sprouted nicely. These plants are sort of "demure" they tend to take it easy right out of the gate in my experience- will probably stay smallish for some time. I think its because they are perennials and, after sprouting, sort of stop and work on what's going on underground. That way they are drought tolerant, but it seems strange in a garden where they can get as much moisture as they need.