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.
Sow the seeds for this hardy perennial outdoors in spring or early fall. The plants will bloom the following May and June, with flowers in blue, pink, purple and white on stalks up to twenty-four inches high. Sun or part shade. USDA Zones 4-9.
Approximately 25-30 seeds per pack.
Line Drawing from New Britton and Brown Illustrated Flora
by H. A. Gleason (1958) zone4, zone5, zone6, zone7, zone8, zone9