““What is the ideal storage condition for seeds? It is just the opposite of the moisture and warmth that make them sprout. You’ll want to store them in a cool, dry place—the driest, coldest place in your home. Some people freeze their seeds. But I find they get moisture even if they are in a zip-lock bag because it never seems to be totally airtight. I prefer refrigerating them in a wide-mouth jar with a screw lid. Label your containers and store them in the refrigerator on a back shelf. In each jar place a desiccant packet from a medicine vial, or add a little powdered milk wrapped in a tissue to soak up any excess moisture in the jar.””