(Nepeta cataria) Use this mint for teas, or for amusing your cat. (Note that only about 2 out of 3 cats are amused! The remainder, who do not have the dominant gene for this response, are bored by this plant.) Medicinal: Traditionally used for colds and flu primarily as a diaphoretic for feverish conditions. Nepetalactone, the primary ingredient of the essential oil, is chemically similar to the sedative component of Valerian.

Growing instructions: Perennial in zones 4-10. Germination: 70°F, light required, 7-21 days. Transplant. Full sun. 24-30 in. tall.