With intense sulfur-yellow flowers covering its gray-green foliage, blooming Rabbitbrush demands to be noticed. In fact, the prairies of eastern Colorado are almost blanketed with it—something we never notice until it blooms. Interspersed with prickly cholla cactus and some perennial range grasses, it forms the essence of western landscapes. But it’s not just for the wide open spaces. Rabbitbrush is an excellent performer in the garden as well.