Wellie, I certainly know what you mean and wouldn't wish to shoot you sweetheart! You are right Beans fix nitrogen from the air and don't require manured ground

I dig out a doughnut, Fill it up with compost (straw or newspaper would do), place my wigwam of canes water it till it looks like a moat , replace the topsoil /plant the beans.

Ours did very well last year, we didn't eat many in the pod as we had so many other sorts of bean. Just left them to it really. I will say that they take a long time to ripen on the vine though when hervesting for haricots and we found that with the wet Autumn one lot began to get moudy...Had to get them in quick smart.

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Paul