Speaking of tubers that grow in cold climates - I have a question about " Jerusalem artichoke".
http://www.vegparadise.com/highestperch26.html ( in German : "topinambur" , Amadeus :-)
They contain no starch , but an (indigestible ?) polysaccharide "inulin" !
What is the nutritional value ? (calories - indigestible inulin ?)
Do they contain any antinutrients (raw) ?
Theese tubers taste quite good (especially raw) - and are incredibly easy to grow .
No storage is needed - the best is just to leave them in the ground (frost-resistant).
Esben