Papaver orientalis Patty's Plum
I bought two Papaver orientalis "Patty's Plum" in May. One started to produce new leaf and looked healthy. The other stayed pretty much as I bought it. Neither produced flowers. About two weeks ago the second grew new leaf and the first a flower spike. This has now gone black and drooped without opening into flower. The leaves seem unaffected. They are planted in well drained soil which has been enriched with manure and get a good amount of sun. Am I doing something wrong or is there a disease process going on here? Can anyone give me some suggestions please?