I got two large poppies last May with a coupon from the nursery, Papaver orientale Beauty of Livermere. I planted them immediately, they just sort of sat there, then when the horrible summer heat struck, they just withered away to nothing. Literally. I assumed they were done for.
Now I'm seeing green foliage coming up through the mulch exactly where the poppies were planted. I didn't think to take a pic, and I'm at work right now. Will they completely die out and come back like that in cooler weather, or am I seeing something that couldn't possibly be my poppies?
That would be the new growth from your Oriental Poppy. Here in the NW mine start the new growth about September, after I have removed all of the dead stuff from this years flowering. The picture is from today.
As far as I can tell, that is normal behavior for oriental poppies. By late june they look really ugly. By early august, they appear to be gone. Once the ground starts cooling off in September, they reappear.