We've got it growing like crazy here in middle Tennessee. We harvest it often-- it has terrific health benefits and there are some pretty good recipes to be found.
Our favorite is
Bacon and Dead
nettle strata (we make it with ham). Here is a link to that recipe:
http://www.celtnet.org.uk/recipes/miscellaneous/fetch-recipe.php?rid=misc-bacon-deandettle-strata There are other recipes at that site as well but that is our favorite.
HTH
P.S. Be careful eating it
raw. It can have a DRANO like effect on the G.I. system!