Anna, that is odd. I am here in Ohio too. I grow all of my daylilies in the ground, none in pots. I have very little mulch left, as it has been at least 5 years since I put any down. We had close to -30 this past winter. I did leave the old foliage on over winter, since I have little mulch. Maybe that helped some.
I did not loose any daylilies. May have lost a few fans, can't say, as I no longer do "fan counts" but everything looks about right to me.
In fact, I don't think I lost any perennials of any kind. With the winter we had, I am surprised!
I don't have that many daylilies left these days...
About 25 selected seedlings of mine
Around 50-75 named cultivars
A small crowded patch of small seedlings that have not bloomed yet.
Some of mine are out in the main flower bed, and it has poor drainage.
Several were new to me last year, or divided down from clumps to one or two fans in late summer... So not like they were all established clumps.
I do grow a few evergreens, most are listed as semi evergreen, with a few dormants. I have not paid that much attention to what my seedlings are yet.
I wonder why Anna lost so many, yet I didn't? I am 150 miles north of her? You would think that would be worse? And, with many of mine in bad drainage....
Strange...
With all the talk of losses I was afraid to go out and really take a good look around. I am glad everything made it through!