I've decided that I was going to plant some more potatoes about 2 weeks ago but have since been struggling to buy any (that have not already started to grow alot in the sacks they come in).
I was just wondering if it is now too late for potatoes?
Also, I did see some in the pound shop but they had about 10-15cm of growth on them - I was wonder if it is worth buying some to see if they would produce a crop? Presumably I could just take off the extra long growth and there should be enough energy reserves for the potato to make it to the surface so it can start photosynthesising?
It should be fine to plant them in the UK so long as they get enough water.
The problem with 10-15 cm of growth is the handling. If you can get them from from poundland to the garden without snapping the shoots off they'll be fine. Just plant them fairly deep and cover them with gently with loose earth to keep any damage to a minimum.