My roses have gone wild. Can I cut them back at end of September.

Cut back in September. My mother used to hack hers to within an inch of their lives later in October when the weather here in MA. is consistently cooler. Then in the spring, they went crazy with blooms. You should always prune in fall when the plant is almost dormant

Rose pruning should be done in late winter or early spring

Brutal cutting does not bother them in fall.

Wait until spring and then cut back to about 18 inches. Sounds harsh but necessary

I decided to try this for my ornamental pomegranate and my crape myrtles this year before fall and it worked great. Now I don't have to worry about damage from winter and the pomegranates in pots will be easy to bring in for winter. It prompted beautiful growth.

yes... cut them back as soon as the temps drop...

Thank you all. I am sure my roses will appreciate the help.