Korean Feather Reed Grass (Stipa brachytricha a.k.a. Calamagrostic brachytricha) grows well in full sun to full shade exposures. It reaches 4 feet tall and in full sun bears large, upright plumes. With more shade the plumes are more relaxed and will arch over somewhat. The flowers are silvery and lastfrom September until frost. A good specimen plant that mixes well with flowers..