--not sure where to put this, I remember a book thread, but not where it is -- I found this book in the library, if it had been a bookstore I would have bought it. The full title and author: Radical Gardening: Politics, Idealism and Rebellion in the Garden by George McKay
He has one chapter on the "left and right" of gardening - about how the Nazis had herb gardens and made their slave laborers work them.
I couldn't read all of it, but it was fascinating.
My pie came with a little toothpic holding up this tiny ad: