These are all knockout roses. I have always had trouble with roses....then the knockout came along and I read everything that I could get my hands on about these. I decided to try them and haven't been too disappointed. I lost two during that horrible cold winter last year. I visited the garden center, where I bought them, and Ginny said that just about everyone lost them. I had recommended them to our Church and felt bad because they were lost too. I bought a couple of new ones this year...and they have bloomed all summer. I hope that they make it through the winter...I will be more diligent about mulching or covering them this year. I really figure that if they are lost...I will be sad, but they have given me pleasure the whole season long ...and will till frost, so I have to think that they were worth it. Such a bright splash of color in the garden and in my little floating vase.