Plant and give it a shot but probably will not live. Much depends on how long ago you purchased.

I have had some that were 'lost?' in the garage for a year or more live but is uncommon.

I'd give them a shot, peony roots can look pretty bad & still show up. Just be aware that from a box store it may be two years before you see bloom.

Okay, thanks! The ones I have going now are from a box store, and it did take a while, but they are getting big, and i got blooms last year, and it looks like a lot of blooms coming now, so i'll keep my fingers crossed :)