Switch grass is noted for its columnar form and typically retains its stiff, vertical shape throughout the growing season. This clump-forming grass is a warm season grass that can grow 3' tall. Flower panicles may get an extra three feet above the foliage. Medium green leaves will turn yellow-  orange in autumn, eventually fading to beige in winter. Foliage is topped with finely textured, pinkish flower panicles that hang over the clump in mid-summer. Flower panicles begin to turn beige as the seeds mature in fall with the seed plumes hanging on well into winter. Seeds are a food source for birds in winter.