Cornflower Centaurea Cyanus Blue Boy
- Seeds can be started indoors 4 to 6 weeks before last spring frost.
- Or direct-sow seeds outside after all danger of frost has passed to a depth of 1/8 to ¼ inch, well pressed as darkness aids in germination.
- Tolerates a variety of soil types.
- When seedlings are 2 to 3 inches high, thin to 10 to 12 inches apart.
- Replant thinned plants.
