Julia, great photos of the hellebores. I thought I was familiar with most of the named ones out there, but out of the photos you posted, I am only familiar with 'Anna's Red'.
Hellebores do well in my garden conditions and so far, about four years now, the ravaging deer have left them alone and I continue to hope they don't ever develop a taste for them. I usually just leave the tattered and browned leaves alone in the fall and then trim them all up in the early spring. Nothing blooming in my neck of the woods yet.