Overwintering Baily rootstocks in 5 gal buckets
I live in the Chicagoland area and have a bunch of my bailey rootstocks for peach tree grafting in 5 gallon buckets. I didn't graft the peach trees this year because of the horrible hot summer we had(the few I tried didn't take). I was wonder what would be the best thing to maintain the rootstock trees over winter? Bury them in the ground or keep them in my garage with a heating blanket or what?
Thanks in advance.