rBest time to plant these is in the fall. Attract bees, butterflies, and birds to your backyard with Butterfly weed (Asclepias tuberosa). Butterfly weed is a low-growing milkweed, reaching up to 30 inches at maturity. In good locations, plants may bloom the second year. Third-year plants can be impressive with abundant orange blossoms. Butterfly weed, a US native milkweed is a host plant for the Monarch butterfly. It is a long-lived perennial. A striking US native wildflower for pollinator and habitat gardens. Native Americans chewed on the tuberous root to ease respiratory ailments. Plant outdoors Fall through Late Winter. Seeds will germinate when conditions are optimal. In good conditions, flowers appear the second year. It's a perennial that likes full sun and likes to be well-drained. Moderate water requirement. Sow Fall through late Winter, 12-24 inches apart. Zone 3-9. ABOUT SEED BALLS - Seed balls are 1/2-inch balls of dried soil and seeds. Essentially, they are pre-planted seeds. They are great for no-till gardening and beautifying neglected landscapes. Sow by pressing the seed ball halfway into the surrounding soil. Plant in habitats in need of biodiversity. Non-GMO. Pesticide free. A seed ball protects seeds from erosion, foraging, and harsh conditions. This protective property often results in higher but slower germination rates. Please be patient with your seed balls. Placed in the appropriate soil and climate, they will grow.