Mulching: when, how?
Good morning everyone. Ready for another silly question from a total novice?
I've read that you should offer some protection to overwintering perennials, once they've been cut back (so for example, my acanthus, monarda, agapanthus & delphiniums) in the form of mulch. I've looked through many books; what I can't seem to establish is if you are meant to smother/cover the crowns with the chosen mulch, or spread it around the crowns. One book says the mulch should have no contact with the plant's leaves yet in others I've seen it say that you should loosely cover the crowns. Which is right - and when do I do it?? Many thanks for any help you can give me!