Double-Double Knock Out  Rose Collection Zone 5B Two colors in each pot. Vibrant magenta-red and bubblegum pink blossoms intermingle for an unstoppable show of color that last for months! Twice the number of petals on each bloom. Unique 2N1 combo doubles the flower power with nonstop blooms from early summer to frost. Eight roses: two flower colors in each of 4 pots. Knock Out roses are proven performers throughout the U.S., and this dynamic duo is only on Amazon! Highly versatile, virtually maintenance free and incredibly easy to grow! Excellent as a flowering hedge, foundation planting or in pots on the patio. Select your hardiness zone based on your location. This product only ships to the continental United States.