At just over 20 years old, knockout roses are pretty new to the plant scene. These hybridized ... Unfortunately, heirloom ...

The Knockout rose is facing a serious viral disease called rose rosette. Once infected, a healthy plant starts producing Medusa-like bunches of new bright-red shoots. These shoots bloom ...

Fact checked by Jillian Dara Roses, long a gardener's favorite and our country's National Flower, still suffer from the ...

And they've got good resistance to common rose diseases like black spot ... And depending on your plant hardiness zone, you may see your Knock Out Rose bloom perpetually. First created in the ...