Anonymous wrote:if you fo not mulch and do not clean up the dead plants over the winter, do you need to cut them back in the spring or just let them stay where they fall?
Cutting back and cleaning up is just to make it look tidy, if that matters to you. The plants will come up and bloom even if you don’t cut them back. I do something called chop and drop where you cut back last year’s dead stalks and such, chop them up a bit, and then leave them in the bed as mulch. It’s an in-between measure - tidier than just leaving it all standing, better for wildlife than cutting to the ground and taking it away.