carnation plants

I too have them from flowers in vases to plants in the garden they root so very easily

I didn’t know how easy it was to root cuttings from carnations till I saw it on Gardener’s world. Might be better to take some cuttings now, leave the rest of the straggly mess till the spring and take more cuttings then, as they will root more easily then. I’d be wary of cutting it right back at this time of year but maybe others will advise.

I would do the latter, make lots of new plants for next year.