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Arthropodiums

New subject so new message - I could see those mysteries and questions
were getting into as much of a wire-netting tangle as Santolina
chamaecyparissus ssp or var magonica itself...

I've recently been involved in a discussion on Alpine-L about various
arthropodium spp., as grown in the UK. Only spp so far tried seem to
be A. cirrhatum, A. candidum (plus A. c. purpureum) and A.
milleflorum. Some disagreement between UK growers (perhaps based on
different moisture levels in different parts of the UK, perhaps based
on different hardiness levels of particular seed sources?) as to which
of those three spp is the hardiest and which if any can be thought of
as reliably perennial in the ground. 

I wondered (a) if they're grown elsewhere (Calif?) and if so what
people's experiences with them have been (soil? situation? hardiness
levels?); (b) if any other spp are grown elsewhere (I think there are
around a dozen all told) and, supposing they are, if any of them might
be either possible candidates for favoured UK gardens or so desirable
that they're worth wrestling with even if totally impossible?
Tim Longville
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