"the_constructor" wrote in
o.uk:

When and how to chit potatoes please ready for planting?



To answer your question. For earlies.
To chit them, put them in a very light place(I put them on indoor window
cills) 4-6 weeks before planting to get nice green, red, black or whatever
coloured shoots your seed shows.
If you want to plant them at the end of March (which is the reccommended
time), start chitting on St.Valentines day.

When you plant them, do it gently so you don't knock off too many shoots.

You can, however, plant a few under a cloche in mid-late Feb. to harvest
them earlier and that requires an earlier chitting, say halfway-late Jan.

If you chit them too early, simply take off the shoots as the seed potato
will grow them again.

The reason for chitting is to get the spuds earlier than you would without,
and this is IMO essential for earlies to have them, well, earlier.

A link for you

http://tinyurl.com/6negqw

Hope this helps.