Agrostis capillaris, commonly known as colonial bent or browntop, is a perennial grass native to temperate Eurasia and has been introduced to many other regions, including North America and New Zealand. It is commonly found in moist grasslands, meadows, and disturbed areas, often thriving in open, sunny environments. Colonial bent prefers neutral to acidic soils and is well-adapted to a range of soil types, provided they are well-drained. This grass typically forms a dense sward of fine leaves and can grow to a height of 4-28 inches. The flowering panicles are delicate and airy, appearing from late spring to early summer (May to June), and can create a purple haze over the grassland when in bloom.

Colonial bent is valued for its fine texture and ability to form a dense turf, making it a popular choice for lawns, golf courses, and as a ground cover in temperate landscapes. It is also used for erosion control due to its dense root system. However, its potential for invasiveness should be considered before planting, as it can spread aggressively in some regions. In cultivation, it requires regular mowing to maintain a neat appearance and can tolerate a range of light conditions from full sun to partial shade. While it is drought-tolerant once established, it performs best with consistent moisture.CC BY-SA 4.0