Will these reduced price seed potatoes grow?

in Fruit & veg
Today I spotted the seed potato packs in Wilko reduced to 5p. Most of them seem to have already started sprouting. Will they grow if planted now? I bought Albert Bartlett Vivaldi seed potatoes as they had only growth similar to ones that are chitted. Is it too late for planting them? Thanks for your help.
Oxford. The City of Dreaming Spires.

And then my heart with pleasure fills,
And dances with the daffodils (roses). Taking a bit of liberty with Wordsworth 
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For those looking for seed potatoes, they had different varieties like Cara, kestrel, jazzy, Casablanca etc. - all 5p each. Onion sets and garlic bulbs were marked down to 15 or 20p. I didn't pay much attention to the varieties as I didn't buy them. HTH.