Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Asteraceae
Native
Europe and Asia
Life Cycle
Annual
Plant Height
Tall (Greater than 24")
Flower Color
Blue
Bloom Season
Summer
Further Information
Plant Characteristics
- Attracts Pollinators
- Cut Flower
- Edible Flower
Growing Conditions
Drought Tolerant
Plant Resistance
Deer Resistant
About Blue Boy Bachelor's Button Seeds
Centaurea cyanus
½"–1" wide, sky blue flowers
Planting Bachelor's Button
Plant Spacing
A group of 3 seeds every 8"–10"
Light Required
Full sun
Plant Height
Tall (Greater than 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. |
| Growing & Harvesting | For longest vase life harvest in the morning and choose buds that are about half open. |
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: 20 Total 4 star reviews: 0 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 4
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Rating
26 reviews
- Staci B.Verified BuyerRated 5 out of 5 stars11/20/25Botanical interest never disappoints!
As with every seed order I receive from botanical interests I’m always amazed at how well the seeds germinate- so much better than the majority of other seed companies.
Which best describes you as a gardener? IntermediateBIBotanical Interests11/24/25Hey Staci,
It's wonderful to know that you keep coming back to us because of the quality and reliability you've come to expect. Your loyalty and trust in our seeds means the world to us! Keep on growing 🌻️
- SamVerified ReviewerRated 5 out of 5 stars7/27/25Absolutely gorgeous
Easily germinate. Gorgeous colors.
Which best describes you as a gardener? IntermediateBIBotanical Interests7/30/25Hey Sam,
Thank you so much for sharing your experience! We're so happy that you found the Blue Boy Bachelor's Button Seeds so easy to germinate and that you're loving those gorgeous colors! It's wonderful to hear they performed so well for you. Keep on growing 🌻️
- SamRated 5 out of 5 stars6/3/255 Stars
Just planted. Will see in the future.
- Thomas M.Verified BuyerRated 5 out of 5 stars12/27/245 Stars
Have grown these in another place successfully for years. excited to try them with new soil in a new yard.. favorite flower
- Donald B.Verified BuyerRated 3 out of 5 stars11/3/243 Stars
Seeds haven’t been planted yet. Gift for next growing season
Which best describes you as a gardener? Intermediate