Why do strawberries have their seeds on the outside? Over or underwatered? : r succulents Amazon.com : Seed Needs Catnip Seeds for Planting Nepeta cataria Non GMO Heirloom & Untreated Herb Seed to Plant & Grow an Outdoor Home Grown Garden (1 Pack) : Herb Plants : Many common plants produce edible seeds, nuts, roots, and pollen but only when harvested correctly and identified with certainty. These examples show why knowing plants matters more than collecting randomly.