Bachelor's Button (Cornflower) in Zone 3b
Centaurea cyanus
Method: Either — Start indoors for an earlier harvest, or direct-sow outside for less fuss — Bachelor's Button (Cornflower) tolerates either.
| Start indoors | Apr 11–Apr 18 |
|---|---|
| Direct sow / transplant outside | May 16–May 23 |
| Estimated bloom | ~75 days after planting |
Spacing: 3 per square foot (square-foot-gardening spacing).
Good companions
No standout companions recorded yet for Bachelor's Button (Cornflower).
Where to buy bachelor's button (cornflower) seeds
Some links on this page go to retailers we may eventually earn a commission from as an affiliate, at no extra cost to you. We only recommend products with a genuine consensus of positive, independent reviews — see the sources cited on each item.
See it growing
Search YouTube for "growing bachelor's button (cornflower)" videos → (a live search, not a hand-picked video — results vary and aren't vetted by us)
← Back to the full zone 3b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →