15 Fast-Growing Flowers for a Cutting Garden

This annual can grow from about 8 inches to 3 feet, depending on variety. Snapdragons feature small tubular blooms in a range of colors. They're available in hundreds of cultivars and in just about every color except true blue and black. USDA Zones 4-11

TOH Tip: Snapdragons don't care for heat; plant in the winter in zones 9-11