Grooming the Knock Out rose every week or so spurs new growth loaded with new rose buds. The Knock Out rose is protected from ...

The spotted yellow leaves are the result of black spot disease. Knock Out roses, in general, are quite resistant (not immune) ...

Knockout roses, on the other hand, can grow quite large if left unpruned. “They do need pruning to maintain their shape,” Reeve advises. “If they get too big, you might need to trim them aga ...

Last year, I noticed the yellowing and spotting of some of the leaves on my Knock Out ... new green sprouts mean they are alive and have survived the cold. Given time, it is likely they will grow ...