Centaurea cyanus

Centaurea cyanus

Bachelor button or Cornflower

Previous scientific name(s): Leucacantha cyanus

Drought tolerant annual; full sun to partial shade. Blue flowers bloom spring to summer along roadsides and meadows. Easily established species recommended for inclusion in wildflower blends.  May be listed as noxious in some states.

Varieties: 

Species Attributes

Height: 
- 30 
in.
Life Form: 
Annual
Native or Introduced: 
Introduced
Precipitation: 
Low
Sun & Shade Tolerance: 
Full Sun
Part Sun
Elevation: 
ft.

Soil Texture

Coarse: 
Marginal
Moderately Coarse: 
Average
Medium: 
Best
Moderately Fine: 
Average
Fine: 
Not Adapted

Soil pH

Acidic: 
Not Adapted
Neutral: 
Best
Basic: 
Marginal
Seeding Rate: 
- 14 
PLS lbs/Acre
Pure Seed per Bushel: 
30.70 lbs.
Seeds per Pound: 
96,000
Germination Time: 
Days
Mycorrhizal Dependent: 
Yes
Bloom Color: 
Blue
Blooming Season: 
Spring
Summer