Nepeta cataria, commonly known as catnip, catswort, catwort, and catmint.
Plant catnip in the spring after the threat of frost has passed in your area. Start catnip seeds indoors around six weeks prior to your projected last frost date. Sow thinly in rows 30-90cm (12-36in) apart. Cover three times their diameter with soil. The ideal garden location for catnip will get lots of sunlight and have well-drained soil.