the_constructor wrote:
When and how to chit potatoes please ready for planting?

Potato Day in Hampshire is, iirc, end of Jan, which seems to work very well
for me. Take them home from there and put them in a sunny* window.

You could probably do them now, if you wanted - but then you risk the
sprouts being too big that you damage them on planting, as you still have to
wait till after they're going to get frost damaged before planting out (at
least, after newly exposed bits will be out to be frosted!)

Personally this (er, next) year we've tried the Thompson+Morgan sets rather
than heading out to Hampshire, so we're just going to chit 'when they
arrive' - which I'm expecting will be around Feb.