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

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 ...

Add easy-to-grow 'Knock Out' roses (Rosa 'Knock Out') to your garden for beautiful blooms all season. Fact checked by Emily ...

Find out when to prune Knock Out roses and how to make your cuts to keep your plants looking their best. Knock Out roses bloom for months and tolerate less-than-perfect growing conditions ...

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.

They’re beautiful, symbolic and have been immortalized in poems and songs, but even seasoned gardeners can express ...

Last year, I noticed the yellowing and spotting of some of the leaves on my Knock Out roses. The same thing is happening this year. Can you diagnose and suggest what to use? For some reason ...