Are you sure they're poppies? Seems strange that they would just be coming up now if you planted them last year so I wonder if the poppies died a while ago and these are weeds that just happen to be coming up now. If you're not sure if they're poppies, post a few pictures and someone could tell you whether they are or not.
Oriental poppies tend to bloom earlier in the season and then go dormant, sprouting up again late in the season. But, as said, it would be best to post photos if there's any question as to what they are.