Not only beautiful in bloom, Chocolate Cosmos will amaze every visitor to your garden. This forms a medium-sized mound of dark green leaves, bearing cup-shaped blooms of deep burgundy-red, with the distinctive and rich fragrance of dark chocolate. Plants are slow to grow in spring, and love summer heat. The tuberous roots may be wintered indoors like a Dahlia, stored in a cool basement. Consider growing this in a container and wintering the whole pot indoors in the basement, keeping it sparingly watered through the winter months. Bring up to the light in early spring and water, to get a head start on the season.