I asked the others they both said nope. 

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There was a video on you tube where they cooked them for Christmas. It was very entertaining, the guy had a fun Rhode Island accent.Okay like a artichoke googled them. Lemon water boil or braise them.
Most popular in Italy.
Thanks learn something new.
Yes I’m using them for just that purpose! If you want to try them I have some seeds I could send you.Thank You! I think I also read that artichoke leaves are great for chop and drop mulch.
I love them too! I actually may try cooking cardoons again because they are so big it’sa wonderful way to get more food at a reasonable price. In this case, free since these have been in my garden for years and my sister gave me the first plant.We love artichokes here....or is it the butter and mayo we love???