4 Kelsey Tinker

This dahlia grows 2 to 3 feet tall and about 18 inches wide. The 2-inch-wide blooms are monochrome, but they certainly don’t lack interest. The soft yellow flowers feature a ring of smaller secondary petals, called petaliods, surrounding the golden centers, which are a favorite haunt of bumblebees, honeybees and skipper butterflies.

Why we love it: You’ll see blooms just six weeks after planting, and it’s loaded with flowers until a hard frost.