Candy mint, Mentha piperita, is a hardy perennial to Zone 3. Mints can be started from seed indoors, by cuttings or purchased as plants. Give mints plenty of space because they are invasive; and can take over an herb garden! Keep mints pinched back to inhibit cross breeding that can result in plants with less flavor. You may want to consider growing mints in containers. The flavor and fragrance is typically cool and refreshing, and they are often used in beverages, desserts, and sauces.