When to sow Christmas spuds

[Snoop Puss]

Well I shall plant them in spent tomato compost from this year with some bfb feed and a little water. They have to produce something. I have seen broad Beans sown in Autumn go through a hard winter in the greenhouse come back from thin, wispy plants to produce healthy beans next June.

Good luck. I really hope it works out.

[ameno]

Well I shall plant them in spent tomato compost from this year with some bfb feed and a little water. They have to produce something. I have seen broad Beans sown in Autumn go through a hard winter in the greenhouse come back from thin, wispy plants to produce healthy beans next June.

Broad beans are not potatoes.
Broad beans grow from seeds, and thus are designed not to require much of a food reserve to get started. They are meant to start small and get many times larger. They are also completely frost hardy.
Potatoes grow from a tuber and require a decent reserve of food in the tuber to get going. They are meant to get off to a strong start like that, then grow quickly. They are not meant to have to struggle to get going and grow slowly. And of course potatoes are not hardy in the slightest, and will turn black at the slightest frost.