Are my Dianthus dead?
I've got about 50 Dianthus Fire Star perennials lining my driveway. Some have some bluish/gray evergreen color left in them but many of them are brown with no new growth.
I've read that it is ok to cut them back in the spring...how far do I take the clump off? Cut off all foliage and just leave branches?
Started trimming some of them back to just a small clump but thinking these guys got zapped by the cold winter. There are about 5 years old.
Wanted another opinion before I rip them out. Thanks!