During the warmer months, the view outside my back door truly is knockout rose paradise. I LOVE these roses! I've tried to grow roses in the past and the number of diseases and pests caused me to give up. But not knockout roses. They're hardy and tough. Black spot? Mildew? The knockout rose laughs at such puny enemies. Just plant them, give them a bit of food and watch them go crazy.
Another great thing about them is that they bloom for months. They start blooming in April/May here in Georgia and keep blooming until the frosts in the autumn. Their only downside is that they have no fragrance and I'm sorry about that, but their breath-taking beauty makes up for that.
Enough talk – look for yourself.