Calamagrostis x acutiflora 'Karl Foerster', commonly known as Karl Foerster Feather Reed Grass, is a perennial ornamental grass celebrated for its elegant form and versatility in landscaping. With narrow, upright growth reaching heights of 1.2-1.5m, this grass boasts feathery plumes that emerge in late spring, gracefully arching above its dense clumps of vibrant green foliage. Known for its adaptability, 'Karl Foerster' thrives in full sun to partial shade and is tolerant of a variety of soil types, including clay and loam. Hardy to frost, it is reliably evergreen in milder climates and may die back in colder regions, yet maintaining its structural integrity. Ideal for mass planting, borders, or as a focal point in mixed perennial beds, it provides year-round interest and requires minimal maintenance, making it a favorite among gardeners and landscape designers alike.