According to everything I have read, these bulbs are supposed to be edible, in the same way as C. esculenta. BUT are they? Has anyone ever tried roasting and eating them? We have hundreds of them and hate having to throw them away as they have taken over parts of the garden at the expense of other things.
The only mention I can find of them being edible is a referrence that begins with "it is believed that Native Americans used them as part of their food preparation" not a definitive answer and that was in a wikipedia entry and we all know how accurate those can be sometimes The Royal Horticultural Society has information on them, maybe you could email them to find out for certain.
Did find an American site where the writer has cooked and eaten them Apparently they need baking slowly for 12 hours or more. This turns the inulin in them into fructose, otherwise WIND. Don't think I will bother.
