Ian, you sure picked an off-the-wall genus here. This species isn't in the FCBS databank. I honestly had never heard of it.

Well that doesn't bode too well for my chances of success - if a plant doesn't even exist, it isn't likely to germinate! LOL

Actually I just found a picture of it (link below)

I got seed from Chiltern seeds in England.

Here is a link that might be useful: Greigia