In article lalaw44-EE364F.12054324022013@surfnet-
nl.ipv4.ptr.145.109.x.invalid, says...

(well it feels like a daft question ...)

We are opening up a small area of woodland at the place where I do
gardening. "Opening up" meaning cutting away dense overgrowth, dense
undergrowth and nettles accumulated over as much as a decade.

I thought It'd be great to get bluebells in there .... how does one do
that? I mean: you can't go and buy bluebell seeds, nor have I ever
noticed bluebell bulbs for sale in the quantities we'd need.

You haven't been looking then :-). Both are commercially available
but are the worst way to establish a colony. Packeted seeds are old and
less fertile, and bare bulbs/bulbs in the green may turn out to have
Spanish bluebell characteristics. For best colour, form and scent you
want to be sure you're establishing the graceful native.

By far the best method (IME) is to ask permission from owner of
bluebell wood, to collect seed just before the pods open (late July,
here in Scotland, YMMV) and broadcast them straight away wherever you
want bluebells to grow. No raking, covering or other preparation
necessary.
They germinate the following sprinng (looking like grass); a few small
flowers in year 3; from subsequent years you'll have your own bluebells
rapidly spreading both by seed and underground.

Janet.