Cornflower Black Ball Centaurea Cyanus is an easy to grow hardy annual. Black Ball Cornflower seeds are one of the easiest flower seeds to grow. Commonly known as Bachelor's Button, this particular variety is a tall plant that produces stunning, dark rich purple, almost black, double flowers on a top of attractive silvery foliage. Cornflower Black Ball blooms all summer and into fall providing unique and exotic color to the garden and attracting butterflies along with other pollinators.
Cornflower Black Ball is a cottage garden favorite and Cornflower makes an excellent border and cutting garden flower. Centaurea Cyanus seeds have to be covered with soil, and the best environment for growing Bachelor's Button flower is full sun. Cornflower can tolerate drought and adapt to a wide range of soils, as long as a good drainage is provided.
Height: 32 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