Roses do not have thorns; they have prickles. But there ARE “thorns” in the rose garden. Their names are botrytis, black spot ...

Fill garden beds, borders, and pots with these top-performing shrub roses and enjoy many years of color, beauty, and ...

QUESTION: I think that four of my Knockout rose bushes have rose rosette disease. If I remove all four bushes, what do I need to do to the ground before I plant new Knockout rose bushes in the ...

While there are several fungus diseases that affect roses, the most prevalent problem in the hot humid South is black spot.

Even the seemingly invincible Knock Out roses, with their reputation ... or preemptive treatment for the disease, an unsettling thought for the plant's future. Because of this, RRD was the subject ...

Knock Out and Drift roses have been widely utilized ... the multi-flora rose helps to spread the disease, it is not the origin. Mark Windham, a plant pathologist with the University of Tennessee ...

They were also extremely resistant to insect and disease problems ... We always loved selling Knock Out roses, and we still do, because we knew it was a plant that would bring easy success ...

When you’re ready to plant, dig a hole about two ... says Mortensen. Generally, Knock Out roses are less susceptible to diseases and pests that affect roses. During harsh summer conditions ...

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 ...

There's a devastating disease threatening roses - yup, even those reliably rugged 'Knock-Out®' roses you see everywhere ... and/or dig out the entire rose bush, bag it and put it in the trash ...

This disease can spread from rose bush to rose bush so identifying and acting diligently is a must. At one time the Knockout Rose was thought to not be susceptible to this mite but has since been ...

Its appealing characteristics are well documented — excellent disease resistance ... Fertilize the bushes immediately after this pruning. Knock Out roses and other repeat-flowering landscape ...