Double Columbine (Aquilegia vulgaris plena)
Double Columbines in mixed colors were listed for sale in 1804 by Bernard McMahon, the Philadelphia nurseryman who supplied Thomas Jefferson with many plants for Monticello. Various forms and colors of European Columbine were being grown in America by 1700, and doubles were considered the most desirable. This short-lived but self-seeding perennial with flowers of blue, pink, purple, or white will thrive in fertile, cool soils.
For more information & the possible availability
Contact The Tho Jefferson Center for Historic Plants or The Shop at Monticello