|Fine grass-like, bright green leaves arise from a basal tuft which becomes longer in summer, giving rise to 16 to 20 inch tall spikes of fragrant, fringed, dark purple flowers, which begin in midsummer and continues until fall. Flowers open from the top of the stalk down. A native to eastern and central United States, these plants do well in poor soil, and withstand heat, cold and even drought. A wonderful cut flower, lending strong verticle accent to any arrangement. 'Kobold' is a popular dwarf variety that grows to 2 feet tall.