Cornflower Blue Tall Centaurea Cyanus is a typical annual plant that is native to Europe but naturalized throughout North America. Effortlessly grown from Cornflower seeds and known as Bachelor's Button this outstanding annual plant bears charming and prolific, fully double, blue flowers. Blue Cornflower grows fast and blooms heavily all summer long attracting butterflies and other beneficial insects.
Cornflower Blue Tall is often grown in cutting gardens, naturalized areas, flower beds and borders. In early spring, as soon as soil is workable, Centaurea Cyanus seeds can be started directly outdoors. Cornflower grows best in full sun and cool climate but adapts easily to light shade and poor soil. Cornflower makes a wonderful cut flower for fresh or dried floral arrangements.
Height: 24-36 Inches
Bloom Season: Spring/Summer/Fall
Environment: Sun/Partial Shade
Soil Type: Average/Poor/Dry/Moist, pH 6.6-7.8
USDA Zones: All Regions of North America
Sow Indoors: Winter/Spring (4-6 weeks before last frost)
Sow Outdoors: Spring/Fall (In mild climates)
Seed Depth: 1/4 Inch
Germination Time: 14-20 Days