Oh I agree, Liz. I had wondered if I would end up with a huge puddle with the root submerged down there somewhere in an ever increasing mud bed. Your point is well taken about the nature of the beds the person who suggested this has.
I attended Harvest Day in our botanical garden; representing our peony collection. 85mph winds up in the hills, not so much where we were sitting under tent in the rain. lol. Oh, the things we do for our plants and causes. But I did make contact with a lady who sort of refurbishes beds. I wouldn't want her to replant for me, but at least she knows a daisy from a weed and can dig out the beds, leaving the larger 'specimen' plants in good shape. May solve part of my problem this fall. It is the digging out that has me so defeated. Presented with a more or less clean bed, I can take it from there.