hi Pammie, you need to chit them first [ideally anyway]. stand them in a tray/egg boxes and leave in a well lit but cool room until they have sprouted.

it depends on which sort you have. earlies or main crop.

this is the RHS pages on growing spuds. I have second earlies to start chitting this week. its quite extensive but the info is usually very good.

https://www.rhs.org.uk/vegetables/potatoes/grow-your-own