If you want your knockout roses to look like this during the blooming season:
Do this now:
Pruning is essential and easy for this low-maintenance variety of rose! Once they are pruned, fertilize them and they are ready to go.
For more information on Knockout Roses and why we like them, check http://aatexlawn.blogspot.com/2011_02_01_archive.html
Happy Pruning!
The AA Tex Lawn Team