Nick Maclaren wrote:
In article ,
[...]
Yes, there are a few terrestrial species where the mycorrhizal
and soil problems have been solved (as in making them commercially
viable), but it can't be many. If it were, then we would be able
to restore the native terrestial orchid populations a LOT more
easily than by relying solely on natural regeneration!

Yes, this is fascinating. On the face of it, one might have thought
it not too difficult to identify appropriate mycorrhiza and soil
organisms and culture them. Have you got references to any good reads
on the subject?

I rescued some Early Purples from the Council's machinery once,
complete with soil-ball; but even in a carefully chosen spot even
these very common ones failed to thrive. Funny beasts.

Mike.