Dahlias deliver an impressive floral display in the garden and the vase. These sun-loving, tender perennials are easy to grow and sure to delight. Available in a wide range of flower forms, sizes and colors, dahlias grow best in full sun and in well-drained soil. Dahlia tubers, sometimes called dahlia bulbs, are planted in the spring after the danger of frost has passed. To get a jump start on the flower season, some gardeners, especially those living in more northern areas, start dahlia tubers indoors in the early spring. Dahlias bloom from midsummer to the first frost in the fall. Shop our selection of dahlia bulbs for sale today.