Add easy-to-grow 'Knock Out' roses (Rosa 'Knock Out') to your garden for beautiful blooms all season. Fact checked by Emily Peterson Reviewed by Julie Thompson-Adolf As one of the longest-blooming ...

And they've got good resistance to common rose diseases like black spot and powdery mildew so you don't have to constantly treat them to have them look good. While not every Knock Out rose has a ...

First introduced in 2000, the Knock Out ® Rose quickly captured the hearts of gardeners and landscape designers thanks to its continuous bloom cycle, disease resistance, and array of colors.

With spring just around the corner, now is the time for gardeners to grab their pruning gloves and shears. Mark Wilson, an ...

These diseases thrive in our humid climate ... One of the first on the market was the Knockout roses. They have continued to develop and now we have the Drift roses and the Oso easy roses.

"For roses like knockout varieties ... It also improves airflow, which reduces disease risk and encourages healthier growth. Wilson recommends cutting roses back about knee height, ensuring ...