Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Asteraceae
Native
North American prairies
Life Cycle
Perennial
Plant Height
Medium (12" - 24")
Bloom Season
Summer to frost
About Black-Eyed Susan
Rudbeckia hirta
3"-4" cherry-red and maroon blooms with dark center cones. Some petals have bronze coloring.
Planting Black-Eyed Susan
Plant Spacing
A group of 3 seeds every 12"-24"
Light Required
Full sun. In hot climates, afternoon shade can be helpful.
Plant Height
Medium (12" - 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 | 8 to 10 weeks before your average last frost date. If started inside early enough, may bloom the first year. |
| Direct Sow | 2 to 4 weeks before your average last frost date, and as late as 2 months before your average first fall frost date. |
| Special Sowing | Light aids germination. Press seed into soil surface. |
| Special Care | Deadhead (remove spent blossoms) to extend the blooming period. Mulch heavily in fall after plant has gone dormant. |
| Growing & Harvesting | For longest vase life, harvest flowers in the morning, choosing those that have just unfurled all their petals and change vase water often. |
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: 5 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
Which best describes you as a gardener?
6 reviews
- Sam L.Rated 4 out of 5 stars8/1/25Very colorful
These black eyed Susan's are very colorful. Just blooming now (late July). Kind of slow starters, and a few of my little sprouts didn't make it. But the ones that survived are very nice with plenty of buds and more on the way.
Which best describes you as a gardener? IntermediateBIBotanical Interests8/4/25Hey Sam,
What a pretty color! Black-eyed Susans can definitely be slow starters, but it sounds like the ones that made it through are really thriving with plenty of buds and more blooms on the way. Keep on growing 🌻️
- Missy R.Verified BuyerRated 5 out of 5 stars11/29/245 Stars
I will be glad to review further after this growing season, as I haven't planted the seeds yet.
- Ro F.Verified BuyerRated 5 out of 5 stars11/19/245 Stars
I've never seen this variety and color of Black-Eyed Susans... can't wait to see these beauties in my flower garden!!
Which best describes you as a gardener? Expert - Heather W.Verified BuyerRated 5 out of 5 stars11/9/245 Stars
Great germination
Which best describes you as a gardener? Intermediate - RICHELLE H.Verified BuyerRated 5 out of 5 stars11/4/245 Stars
Love the products offered by Botanical Interests. There's something about the beautiful seed packs that draws me in. Excellent germination rates and plant success.
Which best describes you as a gardener? Intermediate