Snapdragons (Antirrhinum majus) are colorful spiked beauties that are generally cool-season flowers that bloom reliably. They are cut-and-come-again flowers, and they’re easy to start from seed or buy at the garden center in spring. With almost every color combo imaginable, snapdragons fit any aesthetic and grow well in containers. Though technically tender perennials hardy in zones 8-11, gardeners in other zones treat snapdragons as annuals.