Catnip is an easy-to-grow perennial grown primarily for its fragrant foliage that is extremely attractive to cats. A vigorous herb, catnip can be grown indoors on a sunny windowsill or in a bright location outdoors. As with many mints, it can become invasive. Plant it in a location where it is easily controlled. And remove the flower heads before they mature and set seeds. Harvest catnip leaves at any time as a treat for your favorite feline. You also can dry the leaves and stuff them into kitty toys. The aromatic foliage also repels mosquitoes.
More varieties for catnip
Nepeta cataria 'Citriodora' has lemon-scent foliage, particularly on hot days. The foliage is medium green, and the plant is slightly smaller than the straight species. It is just as attractive to cats as plain catnip. Dried leaves can be used to make a relaxing tea. Zones 3-9