The Complete Dinner Plate Dahlia Collection, 'Dahlia Mixed', is a mammoth collection of Dinner Plate Dahlias. It includes one each of our twelve best garden Dahlias. They are perfect for Dahlias collectors and gardeners looking to add some bright color into the back of the border. To attain the giant flowers that make Dinner Plate Dahlias famous their side buds much be pinched regularly. When not pinched these plants are more floriferous, smothered with hundreds of smaller 3-4" diameter flowers. Dahlias are hardy in zones 8-10, but must be dug and stored during winter in colder climates.