Catnip

Catnip has a clump-forming growth habit with square stems and triangular to oval, gray-green leaves with toothed edges that stretch around 3 inches long. Flower spikes appear in the late spring to early fall, bearing clusters of small blooms that are white with light purple markings.  The names catnip and catmint are derived from the intense attraction about two-thirds of cats have toward them.  In addition to its uses with cats, catnip is a popular ingredient in herbal teas, and is valued for its sedative and relaxant properties.