I never knew what the name of that Hellebore was. I have had it now for about 4 years and it does keep getting larger but has not bloomed. What does it look like to bloom? I also have one that is somewhat like that but variegated I really like it and it has bloomed but just a plain white blossom that doesn't show much.
Your post is very interesting. I have a large clump of the bottom one you picture. It is about 8 years old and blooms very good. White with hints of green. Then I have one like it that blooms purple. I guess I should learn the names but just enjoy them.