Earthcare Seeds Butterfly Milkweed 50 Certified Pure Live Seed, True Native Seed - (Asclepias tuberosa) Heirloom - Non GMO Earthcare Seeds Brand - Heirlooms - Organics - No GMO's - Open Pollinated - Seeds the way nature intended Native Host Plant for the Monarch Butterfly Suitable for Zones 3 - 9 Perennial Plant that will Retun Each Year Fresh Non GMO Seeds for the Current Year Save 30-90 Days Moist Stratification in the Fridge because seeds from Earthcare Seeds come already Cold Stratified and Ready To Sow