HOW TO PLANT COLUMBINE SEEDS For best results, put columbine seeds in the refrigerator for 24 hours prior to planting. Another, slightly more intensive way to stratify (a process of breaking seeds? dormancy by subjecting them to moist/cold treatments) your seeds is to first, sow them into a container filled with moist soil. Next, place the container in a plastic bag and refrigerate or freeze it for 3 weeks. Finally, remove the seeds, and place them outdoors in a sunny location or under grow lights and allow them to germinate (21 to 28 days). If sowing outdoors: In the early spring (3 to 4 weeks before the last frost), sow your columbine seeds on top of lightly raked soil. They do not need to be covered. Your columbine seeds will germinate in around 21 days. If starting indoors, plant columbine seeds 6 weeks before the average last spring frost. Columbines are perennials that are hardy to zones 3 to 8 or 9, depending on variety. Seed packets , Organic seeds , Garden seed kits , Heirloom seeds , Non-GMO seeds , Vegetable seeds , Flower seeds , Herb seeds , Seed starter kits , Bulk seeds , Fast-growing seeds , Seed planters , Annual seeds , Perennial seeds , Indoor seed kits , Seed catalog , Microgreen seeds , Wildflower seeds , Seed subscription box , Seed tray sets