Snapdragons perform best in cooler temperatures, putting out abundant blossoms in late spring and late fall. They thrive with nighttime temperatures at about 40°F and daytime highs of around 70°F.

With varieties called Sonnet Yellow and Potomac Apple Blossom, is it any wonder that snapdragons bring a burst of color wherever they bloom? In addition to a far-ranging palette, true snapdragons also ...