Columbines are elegant, woodland-edge perennials with distinctive spurred flowers beloved by hummingbirds and long-tongued bumblebees.
Zone 4A 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 4A has an average last spring frost around May 8 and first fall frost around Sep 25. 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.