I am reliably informed that if one plants a 'chitted' potato in a pot in September (it's almost September), one will have a crop of new potatoes for Christmas.
Well I had just one sprouting potato sitting, looking lost, in the kitchen, so decided to give it a go. I filled a largish pot with compost and stuck it in. One week later and, voila, it's already sprouted tiny leaves.
There's no reason why we now shouldn't have new potatoes with our cold Turkey; I'll let you know around December 25th.