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

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

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 ...

Like my old garden roses, there is no problem with black spot. At the first sign of an aphid infestation, I put down my systemic fertilizer. Double Knockout Roses are now available with fuller blooms.

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.

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 ...