Dahlia ‘Barbarossa’ is the largest red dahlia available on the market. This spectacular variety produces flowers with a diameter of up to 10-inches on 3 to 4-foot stems!  Plant these tubers in well-drained soil in a sunny location. These easy to grow stunners will bloom from summer until frost and attract a multitude of butterflies.  Cut a few and add them to a vase to enjoy inside your home. For best flowering, pinch the first buds to encourage lateral growth.