I have quite a few coreopsis they haven't died back but are looking a bit sad what do I do with them please
Just cut them back cornishpixi new growth will come from the base.
I think they should be cut back to a couple of inches after the first frost.........then again I could be wrong, someone ' in the know' will be along soon
Wow!! I was right
Thanks for asking and answering this question. Can I do the same with my rudbeckias please ?