Jon,
I've never tried the potato at Xmas thing, I think peopel grow them in bins of soil to keep them warm??
I'm no expert, Herself does the clever stuff in the garden, I'm just allowed to do the heavy work & tend the veg. Retirement means a few moments hoeing and watering daily much less of a chore!
Pete,
see my Postcard from Greece thread for our June/July jaunt, off to Lesvos next Thursday for a fortnight, watch this space!

RtS