The cornflower typically starts flowering in June.
cornflower
Centaurea cyanus
Also Known As - Bachelor's Button,Blue Bottle,Blue BottleCycle:
Annual
Watering:
Average
Propagation:
Seed Propagation,Division,Cutting,Layering Propagation
Hardiness Zone:
2 - 11
Flowers:
Blue Flowers
Sun:
full sun,part shade
Fruits:
Fruits Ready In Summer
Leaf:
Yes
Leaf Color:
green,purple,cyan
Growth Rate:
Low
Maintenance:
Low
Care Level:
Medium
watering
Cornflower requires consistent watering to thrive. During the active growing season (spring to summer), water the plant when the topsoil feels dry to the touch - about every 1-3 days. During the winter months, reduce watering as much as possible, as the plant goes dormant. Water lightly once a month during cold winter months or if the plant shows signs of drooping leaves.
sunlight
Cornflower (Centaurea cyanus) prefers full sun for at least 6 hours per day in order to reach its highest potential in terms of flower production. They flower best in cooler climates of the northern hemisphere due to their native range being in the plains of central Europe and regions around the Mediterranean. In more southern regions, they will flower more sporadically and will require more frequent water in order to keep their blossoms looking lush and vibrant. In more temperate regions, they should still receive a minimum of 4-5 hours of direct light for optimal growth and development.
pruning
Cornflower (Centaurea cyanus) plants should be pruned in late winter or early spring, when the plant is dormant. Pruning should remove any broken, diseased, or dead stems, as well as any flower heads that have become detached and are lying on the ground. If the plant is growing aggressively, it may need to be pruned back quite far to encourage it to become bushier. However, be careful not to prune too much or you may damage the plant.
Season
The harvesting season for Centaurea cyanus (cornflower) typically begins in June and ends in August.