2nd-year maturity. Liatris spicata. Liatris Spiked Gayfeather Seeds. Non-GMO, Perennial. Spiked Gayfeather liatris seeds grow classic and delicate blooms where other flowers would wither. Spike Gayfeather seeds deliver 36-48 inch tall liatris plants brimming with densely blooming stalks 14 inches long in shades of rose and purple. Liatris is a tolerant seasonal performer ideal as a neat trim along the flower bed or as a timeless floral shop favorite that promises to add a professional charm to your summertime baskets, arrangements, and bouquets. Approx 7,000 seeds per ounce.