Posted: 19/02/2014 at 08:36
Hi nutcutlet. Exactly the same thing has happened to me before. I've thought that my Helleborus niger just got too dry in its shady site during summer, and didn't pull through. I've never got it to establish, unlike the Oriental hybrids and H. argutifolius that are far more reliable. Helleborus lividus has been good for me too.
My garden is dry (East Anglia) but I have hopes that now it's got away H niger may survive. H. corsicus gets very big, falls over and doesn't live long. Just long enough to set seed and start the whole process again
My lividus shared the fate of yours Dove.