In article , Alan Holmes alan@holmes-
g4crw.freeserve.co.uk writes

In the past I've always put the tubers on the kitchen windowcill to sprout,
but this year the windowcill has been taken up with other things, can I put
them in the greenhouse to sprout, and do I need to watch out for frosts?

An unheated greenhouse will not give sufficient frost protection to
chitting potato tubers during Feb./March in UK IMHO.
--
Alan & Joan Gould - North Lincs.