A friend gave me a small handful of Jerusalem Artichokes last spring.
Stuck them in the ground and since I could not get out and do anything
last year I had 4 large trees. I now have 3 good-sized buckets full
of the roots. They taste pretty good. Now to figure out what to do
with them. According to the Web they could replace Ex-Lax for some
people.
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USA
North Carolina Foothills
USDA Zone 7a
To find your extension office
http://www.csrees.usda.gov/Extension/index.html