When first asked to write a 1500 word story on hellebores, I remarked that it was tantamount to trying to read the complete works of Shakespeare in one evening.
Culture is simple.
They prefer moist, but not wet, rich, organic soil in full to light shade. In areas where winter is severe and there is no reliable snow cover, a mulch of shredded hardwood bark provides a warm blanket. They are greedy feeders, and when using a timed release fertilizer such as Osmocote, I recommend the highest range. Soil Ph in the range of 5.5-7.0 is fine. Hellebores have relatively few pest or disease problems.