Phlox subulata (Moss Phlox, Moss Pink, Mountain Phlox) is a perennial creeper growing to a height of 6 inches and covering a 20 inch wide area. The small, five-petaled flowers bloom in rose, mauve, blue, white, or pink in late spring to early summer. According to one news story, the plants give off an odor that can supposedly be mistaken for marijuana. This has been known to cause altercations between gardeners and law enforcement personnel or criminals.