Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Asteraceae
Native
Europe and Asia
Life Cycle
Annual
Plant Height
Medium (12" - 24")
Flower Color
Purple
Bloom Season
Summer
Further Information
Plant Characteristics
- Attracts Beneficial Insects
- Attracts Pollinators
- Cut Flower
- Edible Flower
Growing Conditions
Drought Tolerant
Plant Resistance
Deer Resistant
About Bachelor's Button
Centaurea cyanus
½"–1" wide, very dark maroon flowers
Planting Bachelor's Button
Plant Spacing
A group of 3 seeds every 8"–10"
Light Required
Full sun
Plant Height
Medium (12" - 24")
Planting Depth
¼"
Planting Details
| Seed Depth | ¼" |
|---|---|
| Seed Spacing | A group of 3 seeds every 8"–10" |
| Thinning | When 1"–2" tall, thin to 1 every 8"–10" |
| Germination | 7–14 days |
| Start Indoors | 4 to 6 weeks before your average last frost date. Not recommended; does not transplant well. Use biodegradable pots to avoid root disturbance. |
| Direct Sow | RECOMMENDED. 1 to 2 weeks before your average last frost date, or in late summer/fall for blooms the following season. Mild Climates: Sow in fall for winter bloom. |
| Special Sowing | For optimum germination, chill seed in the refrigerator for 5 days before sowing. |
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: 15 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
Which best describes you as a gardener?
17 reviews
- BrandiRated 5 out of 5 stars4/6/26Pretty flowers
Done in a green house indoors during winter and early spring months in New York.
Which best describes you as a gardener? IntermediateBIBotanical Interests4/7/26Hey Brandi,
We're so happy to hear your Black Magic Bachelor's Button Seeds produced such pretty flowers! Your photo shows just how pretty they are. Growing them in your greenhouse during those New York winter and early spring months is such a smart way to get a head start on the season. These dark, dramatic beauties are going to add such gorgeous contrast to your garden! Keep on growing 🌻️
- Anastasia C.Verified BuyerRated 3 out of 5 stars2/18/26Black bachelor buttons
Spotty growth. I'm glad I purchased extra seeds.
Which best describes you as a gardener? IntermediateBIBotanical Interests2/20/26Hey Anastasia,
Thanks for sharing your experience with our Black Magic Bachelor's Button Seeds! We're glad to hear you had the foresight to get extra seeds - that's always a smart move when trying out new varieties! Spotty germination can definitely be frustrating, and we appreciate you letting us know about your results. We hope the extra seeds help fill in those gaps and that you'll get to enjoy the beautiful deep purple blooms these bachelor's buttons are known for. Thank you for choosing us and for taking the time to share your growing experience with us. Keep on growing 🌻️
- Lisa B.Verified BuyerRated 5 out of 5 stars12/27/25Terrific late summer bloomer
Started in a raised bed according to package directions, and although a little slow to start, once these deep purple flowers started blooming they did not stop! (We've had an unseasonably warm fall and winter in Colorado this year) I kept deadheading, flowers kept blooming, and bees kept feeding until late November when I let seed heads form and sprinkled them on ground. Will definitely plant again next year.
Which best describes you as a gardener? ExpertBIBotanical Interests12/30/25Hey Lisa,
Thank you so much for taking the time to share your wonderful experience with our Black Magic Bachelor's Button Seeds! We're absolutely thrilled to hear that those gorgeous deep purple flowers kept blooming non-stop for you once they got going! It sounds like you had the perfect combination of following the package directions and taking advantage of Colorado's warm fall weather. We love that you kept deadheading to encourage more blooms and that the bees were enjoying them right up until November - what a fantastic pollinator garden! Your smart thinking to let the seed heads form and scatter them for next year shows you're a seasoned gardener. Thank you for choosing us and for sharing your growing success with us. Keep on growing 🌻️
- TerryRated 5 out of 5 stars11/11/255 Stars
I can't wait to be able to plant these seeds !
- TerryRated 5 out of 5 stars11/11/255 Stars
I can't wait to be able to plant these seeds !