The opium poppy is Papaver somniflorum with big cabbagey leaves and is biennial. I think it flowers a bit later than now and does not produce enough opiates in our climate, otherwise it would be illegal to grow like in Italy and parts of the US - but the druggies probably don't know that.
At present we have the oriental poppy in flower, Papaver orientale, which is the big blousey perennial. Not used for drug manufacture i understand. Most years they seem to get ruined by rain but this year they have been fantastic. I like the white and pink varieties and there are some bi colours. Unfortunately I don't have enough well drained soil to grow many.