Centaurea cyanus

Bachelors' Buttons or, if blue, Cornflower


SupergroupOrnimental Annuals
SubgroupBlue
Zones3-10
Exposurefull sun
StratifyYes
TempLate fall to very early spring
Depthsurface or 1/4"
Width12"
Heighth18"-36"
OriginMediterranean

Generally an annual, bachelors' buttons may occasionally overwinter. In favorable locations they self-seed, breeding fairly true-to-type, and may become naturalized, although not so aggresively as to be invasive; this is a good indicator of an easy-to-grow plant.

Bachelors' buttons prefer sandy, well-drained soil, but tolerate a range of conditions. They have excellent drought resistance. Sow anytime from late fall until early spring; the seeds need at least three weeks of frost.

Dry cut bachelors' buttons upside down for use in "everlasting" boquets.


Last update
Oct 4, 2006