Roses go through two years of testing by the American Society of Roses. Knock Outs tested so well that they thought they were ...

Two of the most popular types you’ll come across are Double Knock Out roses and Petite Knock Out roses. This cultivar has 25 to 35 petals and a strong, non-fading cherry red color. "Double Knock ...

Add easy-to-grow 'Knock Out' roses (Rosa 'Knock Out') to your garden ... The attractive flowers are available in single or ...

The spotted yellow leaves are the result of black spot disease. Knock Out roses, in general, are quite resistant (not immune) to black spot disease. During wet weather conditions, however, even ...

SHREVEPORT, Louisiana (KTBS) — Both Knockout and Drift roses have become favorites in both residential and commercials landscapes due to their low maintenance and impressive blooming cycles.

But then came breeder David Austin, with relatively hardy varieties bred for the romantic look of 19th century roses. And then, in 2000, came Knock Out. With cherry-red single blooms on a bushy ...

Friday, May 9, was National Knock Out Rose Day. This is the first year this day has been recognized. Star Roses and Plants released the first Knock Out roses in the year 2000. They are celebrating ...