I've gone this far in talking about what I know very little about, so I'll keep going ...
if you read technical articles, they are only going to give very technical advice.
Unless they say things like this:
- - - - "hellebores are MUCH harder to divide than other plants, so you HAVE TO jump through all these hoops"
... maybe there is little need for the fancy media and techniques.
Are those articles talking about sterile tissue culture cloning? Then yes, there are hoops galore.
But if the plant can by propagated by division, it might be as easy as "pull it, cut it, re-plant it".
I'll go read those links now, if IT at work will let me.