pototo advice

I have just dug up one container of my potatoes, and rather than throw away the plant stalks and teeny tiny tubers still attached, as I usually do, I put them back in the soil to regrow. What I want to know is, whether the frosts will kill the whole plant or just the bits above ground, and could I get a second crop from these plants?

I have read about planting in September for a Christmas harvest, but this is using seed pototoes. Would this work with my existing potato plants? I am assuming a generous amount of bubble wrap would be required.

Please let me know if anyone else has tried this, or whether I am wasting my time!

I agree with DD. I often miss those teeny potatoes and they sit quietly all winter then pop up in all the wrong places next spring. It's the winter rest that makes them grow in spring so you'd be best to buy ready seed potatoes for your Christmas plans.

I would be cautious for the following reasons;

Firstly, if they are in a container rather than the soil, chances are the frost will kill em off, unless you move them to a frost free site.

Secondly, growing potatoes from uncertified seed is proven to increase the chance of the plant getting struck by a virus.

Finally, the chances of a decent crop is considerably reduced if using the tiny tubers left over, as they don;t have enough "in store" to see them through the first stages of life when putting out a root system (It is from this that potatoes grow)

I would rather gamble on cheap Wilko seed potatoes.  They cost next to nothing anyway.  (NB: I always order my seed potatoes through my allotment association anyway)