Hi everyone, I live in Minnesota and we have a lot of cattails. I know that there are several food products within the cattails, but I am curious. I have heard that if you harvest the heads before they go to fluff you can boil and eat them. I have also heard that you can harvest the roots and consume them like potatoes, and I have heard that if you cut off the bottom of the stock you can peel it down to the center and it is similar to celery, however, I have tried all of these things to little avail. does anyone know, how, when and what part of the cattail to harvest and how to prepeare it.