Columbines are elegant, woodland-edge perennials with distinctive spurred flowers beloved by hummingbirds and long-tongued bumblebees.
Zone 3B has a short growing season — start seeds indoors when possible and use season-extending techniques like cold frames and row covers.
Good companions: ferns, hostas, bleeding heart, astilbe
Avoid planting near: Hot, dry, full-sun sites in zones 7+
Ornamental; harvest seed pods when mature for replanting
USDA Hardiness Zone 3B has an average last spring frost around May 15 and first fall frost around Sep 15. All planting dates above are calculated from these frost dates. Your specific location may vary — check with your local extension office for the most accurate dates.