Cornflower Black Ball
Cornflower Black Ball produces very dark rich crimson flowers in clusters . From Jun onwards on strong wiry stems reaching approx. 75cm – perfect for cutting & also drying. Centaurea is a hardy and easily grown cottage garden annual which prefers full sun and a rich well drained soil.
Cultivation Advice Cornflower Black Ball
- Days to germination 5-10 days.
- Optimum soil Tempt for germination: 60F-70F. Plant Height: 15-18 inches.
- 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.
