Grass, Shenandoah Switch GrassNative Polllinator Plant. Dependable and showy, this native grass will become your favorite garden chameleon as its blades emerge in spring to form a narrow, upright, steely blue green column of foliage that begins to add a healthy dose of burgundy red as late spring progresses into summer. By late summer, its foliage is dominated by the stunning red color that is further enhanced by light, airy, small red flowers that form an attractive, airy seed