Answer: You do not need to trim them back at all in the fall. Any trimming back would be done early next spring. At that time they can be sheared back short or you can remove some of the oldest stems or canes by cutting them at the base each spring to stimulate new growth. At that time you would also remove any dead or broken canes. The only care they need this fall is a nice layer of mulch over their root zones. These are very low maintenance roses.
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