Caspian Korean Feather Reed Grass

Caspian is a warm-season selection of Korean feather reed grass, grown for strong upright clumps and large, fluffy flower plumes. The plumes open pale pink in mid to late summer and mature to a clear white, providing a prominent vertical display in a border or large container. ## Cultivar and size The [breeder, Emerald Coast Growers](https://ecgrowers.com/blog/built-for-heat-calamagrostis-a-var-brachytricha-caspian/), identifies Caspian as Calamagrostis brachytricha and describes a tidy upright clump reaching about 4 feet tall. Its cultivar information lists the plumes as pale pink before they mature to white, and notes that the plant is suitable for borders and larger containers. The breeder reports cold hardiness to USDA zone 4. ## Siting Give Caspian sun or part shade; the breeder says its flowering is especially full in bright sunny spaces while also tolerating part shade. Grow it in moist soil and allow its upright clumps room to fill out. Its summer plumes make it a useful vertical accent in a larger planting. ## Maintenance Leave the plumes standing as they dry, then cut the old grass back before new growth begins in late winter. The extension guidance for Korean feather reed grass recommends keeping soil moist and cutting the clump to the ground before spring growth. Divide established clumps when propagation or renewal is needed.