Our subject rose is 'Morning Mist', a lovely single shrub rose introduced by David Austin in 1996. 'Morning Mist' is planted in my English Garden and had grown into a lovely rounded shrub, approximately four feet high and three feet wide.
photo of 'Morning Mist' taken in my garden in 2011.
This is what the bush looked like last week, before I did anything to it. Looks dead, doesn't it?
Almost everything you see in that photo IS dead. Careful examination, though, revealed that there were new sprouts emerging from the base of the plant. (This rose is own-root, not grafted, so whatever sprouts from it is the named variety, not an invading rootstock.)
Pruning was a simple matter of removing whatever was dead and leaving the live parts, and being especially careful not to break off the delicate new sprouts. When I finished, there wasn't a whole lot of the last year's plant left. (The 'tall' cane is about one foot high. The others are a few inches long at most.)
The new shoots are strong and are growing well, so I have no doubt that 'Morning Mist' will soon regain its former size. It should not have to struggle to do this, because it won't have to duke it out with weeds anymore.