Charming and lovely, Cornel Dahlia blossoms are perfectly round with tightly-packed, cupped petals. Described as dark cherry or ruby colored, the three- to four-inch ball shaped blossoms provide a long vase life. Four-foot-tall plants bush out, producing an inordinate amount of blooms on strong, sturdy stems. We particularly love how the ruby blooms contrast against the dark green foliage.