Densely packed rosettes of half-inch blue-gray oval leaves form creeping carpets, ideal for covering rocks. They even hang like curtains by their roots from cracks in vertical rocks. Creamy white 3" clusters of whiskery flowers on stalks look like little furry corn dogs, especially when they turn light brown. Blooms June–August.
Native to the Rocky Mountains, growing on limestone, so it appreciates coarse, gritty soil. Also known as dwarf spiraea and tufted rockmat.