More info about our plant sizes.
Please email us to confirm at-nursery availability of plants that are too big to ship.
Deep, dark, double purple-black flowers on 2-foot stems are not always recognized as a columbine at first glance. Plant it against a lighter background so they can really show off, otherwise they might visually disappear and you wouldn't want such a wonderful columbine to go unnoticed.
Minimum temperature: -30° F