Catnip is a beautiful herb for your perennial or herb gardens. Growing up to 36 inches tall the lovely green foliage will produce a beautiful blue flower. The strong mint like scent sends cats into a complete frenzy, they will be your best friend forever! Catnip is also used to help headaches, stomachaches, colic and sleeplessness. Catnip prefers to be planted in a full sun location with adequate water. Catnip can be harvested when it reaches 12 inches. Hardy in zones 3-9.