Snapdragons are short-lived perennials that can thrive for up to three years. They reseed easily, though hybrids may not grow true to type. In zones 7–11, treat them as perennials by cutting back in ...
Do snapdragons come back after winter? In some areas of the country, snapdragons are treated as short-lived tender perennials. Most snapdragons are hardy in USDA Zones 7 to 11, or, more likely, 8 to ...