How do I prune my bush roses?
Four Easy Steps to Pruning
Cut out all dead canes right to the ground
Cut out all diseased canes or ones damaged by rubbing against others, back to healthy wood. Healthy wood when cut looks like a green apple.
Remove any stems thinner than a pencil thickness as they will only produce poor blooms.
Prune back the canes left according to the type of rose. A general rule of thumb for most bush roses is cut back by one third.