CarolineScott said:It is good to see that some one has had success with this plant.
I thought that it was related to peonies------but you have it as a Wood Poppy.
I didn't know Glaucidium had a common name, when one links photos in this NGA forum, it checks it against a taxonomic database (Catalogue of Life, or CoL), then automatically adds the associated common name (if one exists). Googling around, most sites list it as Japanese Wood Poppy... frankly I don't pay much attention to common names.
Glaucidium is in the buttercup family (Ranunculaceae) and Paeonia is in it's own family (Paeoniaceae). I just leaned this tonight, looking it up in CoL.
Here's the CoL entry for Glaucidium palmatum:
http://www.catalogueoflife.org...