Bachelor's Button (Centaurea cyanus)
Also known as Cornflower, Bluebottle, and Bleuette, Bachelor's Button is an easy-to-grow, self-seeding, cool-season annual with bright blue flowers that has been popular in America since colonial times. Philadelphia nurseryman Bernard McMahon offered it in five colors in 1804 -- purple, red, blue, white, and striped -- and Jefferson included “French pink bleuette” in an 1806 list of flowers.
For more information & the possible availability for purchase
Contact The Tho Jefferson Center for Historic Plants or The Shop at Monticello