Bachelor’s Button flowers, Centaurea cyanus, are ancient wildflowers in the Asteraceae genus. They have grown throughout history in grasslands and meadows, and were favored for their vibrant colors. Different varieties that were cultivated for their vibrant color and beauty are what we now consider to be garden-variety Bachelor's Buttons.
Given their heritage as a wildflower, Bachelor's Buttons are drought and heat tolerant today and edible, packing a dose of vitamins. They self-seed and are also called Cornflowers, Boutonniere flowers, and more.