Argutifolius is a real pain
Of all the hundreds of hellebores I grow I am disgusted with argutifolius. I have 2 plants of this species for 9 and 11 years respectively and have bloom on 1 twice and never on the other. Have mulched and not. Have shaded and not. Have erected wind barriers and not. Have done about everything I can think of in fact.
They almost always burn off in the winters here, even the mild ones. Our snow cover is intermittent and it gets very windy so most top growth simply disappears into dry sticks.
One year in fact, this and only this plant was attacked by grape weevils of all things.
Not a single other hellebore plant has given me trouble and they happily continue to fill my beds with thousands of seedlings and multiply into monstrous clumps.
LOL Just venting.