In message , androo
writes
A friend wants some of my snowdrops, but I don't want to damage them by
digging them up at the wrong time. How and when should I do it?

They are quite tough. Wait until they have finished flowering and died
off, then dig them up. Bas digs ours up every year and they have not
come to any harm in 21 years. (He claims to hate gardening but does all
the back-breaking hard work in our garden before I do the enjoyable
stuff, which he isn't interested in.
--
June Hughes