I put out some pots (5 gal) with my peony roots from last year. I thought maybe the garage was too warm for them. So of course it dropped to 20F last night. Their little leaves were frozen. But they are tough. Reem says they can withstand snow even. Snow doesn't seem as bad as frost. I guess we will see. My WS poppies have just started to germinate. Seems like the double Shirley's are always the first.