In article ,
Charlie Pridham wrote:

Have you tried Bomarea? B edulis is the one that's easy having tubers it
will cope with dry periods and it dies down to the edible tubers for
winter
so is perfectly hardy.

How deep? Even in a protected spot like that, the soil freezes
here in a cold winter. Currently, rarely below 2", but it was
futher in the 1980s.

tubers go deep, up to 12" down in light soil. It really is very easy to
grow, not sure what the tubers taste like though!

I am not sure that it would like the dryness, but it certainly
sounds interesting.


Regards,
Nick Maclaren.