Dampen a Paper Towel Fold a paper towel in half. Sprinkle it with water until it's barely damp but not soggy. Treat the Seeds Sprinkle the coneflower seeds on one-half of the paper towel. Fold the towel in half so the seeds are between two layers of moist towel. Seal the towel in a plastic bag and keep it in the refrigerator for eight to 12 weeks. This cold treatment mimics winter conditions and helps the seeds break dormancy so they can germinate. 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