Knock Out Roses have quickly become on of the most popular and sought after roses for gardeners everywhere in North America. With low-maintenance, disease-resistance, drought-tolerance and self-cleansing characteristics the Knock Out Rose is perfect for any landscape or garden. The Knock Out Rose produces single-form, medium flowers with seven to eleven pedals, which re-bloom every four to six weeks. These roses are extremely easy to grow and require very little maintenance. They bloom from the Spring until the first frost.