hazelnut...that's kind of why I asked the question. I mean, I'm of the belief that if it can grow in your region and you want it in your system, why not. I'm not a big fan of ornamentals personally...given the size of my space, I want to make the most of it.
I think even aromatic ornamental roses can be useful. Ever made rosewater by distilling boiled rose petals? I'd be more inclined to use rosewater than rose hips, so I guess it comes down to usefulness to me. Rosewater is used lightly in baklava, and can be traded or sold.
