Yes,

the flowers are hardy but the flowerbuds not, so it is advisable to cut back
the leaves in februari and place some airy dry mulching around the old
leaves.

Here in Holland the flowering of Helleborers is depending on the kind of
winter. Some winters are to cold and there are just a few late flowers left.



regards
Rene Blom

http://members.home.nl/rene.blom/index.htm


"Krilb" schreef in bericht
...
Is it advisable to protect the new blooms, which are now coming up,
from frost using, say a leafy mulch?

We live in North london.