Agrostis castellana, commonly known as Highland Bent, Dryland Bent, or Dryland Browntop, is a cool-season perennial grass native to the open grasslands and rocky outcrops of Macaronesia and the Mediterranean region. It typically forms dense tufts and can reach heights of 15-60 cm. Highland Bent is characterized by its fine-textured, narrow leaves and a flowering period that occurs in late spring to early summer, producing a panicle that is open and pyramidal with a green to purplish hue. The flowers are not particularly showy, but they do contribute to the grass’s overall texture in the landscape.

Highland Bent is valued for its ability to thrive in poor soils and its use in erosion control due to its dense root system. It is often used in lawns, golf courses, and as a ground cover in areas with dry or infertile soil. This grass prefers full sun to light shade and requires well-drained soil. It is drought-tolerant once established, making it suitable for xeriscaping. However, its invasive nature should be considered when planting, as it can spread aggressively and outcompete native vegetation.CC BY-SA 4.0