Cornflower Bachelor's Button
Centaurea cyanus 'Bachelor's Button'
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Annual
Height
24 inches
Width
12 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Annual
Native To
Europe
Toxicity
Non-toxic
The Story
Plant Bio
A hardy annual known for its vivid blue flowers that bloom in clusters. Often grown as an ornamental flower for its vibrant color and ability to attract beneficial insects.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
We couldn't find this plant listed online right now.
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck seeds 1/4 inch deep into well-draining soil.
- Mist cuttings lightly to maintain humidity and root in 4-6 weeks.
- Plant outdoors after last frost when soil warms.
- Water regularly but avoid waterlogging for optimal growth.
- Fertilize monthly with a balanced fertilizer during the growing season.
- Deadhead spent flowers to encourage continuous blooming.
Pro Tip
Sow seeds directly in early spring for best natural growth and vibrant blooms.
Keep It Thriving
Care Guide
Do
- Water consistently to keep soil moist 🌱
- Deadhead to prolong flowering period
- Provide full sun for optimal growth
- Mulch to retain soil moisture
Don't
- Avoid overwatering to prevent root rot ❌
- Don’t plant in shady areas
- Refrain from heavy fertilizing late in the season
- Avoid disturbing roots during flowering
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Deadhead | ||||||||||||
| Harvest | ||||||||||||
| Plant | ||||||||||||
| Propagate |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Cornflower Bachelor's Button questions
What zones can Cornflower Bachelor's Button grow in?
Cornflower Bachelor's Button is hardy in USDA Zones 4–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Cornflower Bachelor's Button deer resistant?
Yes — Cornflower Bachelor's Button is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Cornflower Bachelor's Button bloom?
Cornflower Bachelor's Button typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Cornflower Bachelor's Button need full sun?
Cornflower Bachelor's Button does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Cornflower Bachelor's Button drought tolerant?
Yes — once established (usually after the first full season), Cornflower Bachelor's Button handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Centaurea to compare
Blue Cornflower
Centaurea cyanus 'Blue Diadem'
Amethyst in Snow Bachelor's Button
Centaurea cyanus 'Amethyst in Snow'
Red Boy Cornflower
Centaurea cyanus 'Red Boy'
Amethyst Dream Cornflower
Centaurea cyanus 'Amethyst Dream'
Bachelor's Button Blue Boy
Centaurea cyanus 'Blue Boy'
Black Gem Cornflower
Centaurea cyanus 'Black Gem'
Keep exploring
Explore the genus
Collections featuring this plant
Grow Cornflower Bachelor's Button with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
