I want to plant Austrian winter peas this fall: first, for weed suppression, second, as food for our animals and ourselves. We haven't done this before, but I've read that they need a strong-stemmed companion plant to support the vines. The question is: what to use?
The usual choices seem to be grains like winter wheat and rye. My wife has ruled those out because she is gluten intolerant, and she doesn't want to risk growing a gluten producing plant, even if we aren't going to let it fruit. What good alternatives are there?