Steven,
Would love to be updated on how your living fence project goes. I have been contemplate living fence for several areas. If grown from seed, it's by far the most economical option. And, depending upon the species selected for the fencing, the fencing can serve additional functions for the landscape.
Like you, I have been strongly considering Osage Orange. It was one of the many choices suggested in the Mother Earth article I read on the subject. Siberian pea shrub, honey locust and black locust were also on the list.
Where I am, USDA zone is not so much a concern in my choices. My soil may not be right for black locust. Gonna try anyway. It's a nitrogen fixer. Its nectar arguably produces the best honey, I hear. Its wood is incredibly resistant to rot. It coppices well. The bark of green branches makes good fiber for weaving.
What the Mother Earth article suggests is using at least 2-3 species to make up the living fence. And after going over the qualities of several particulars species, some of which, I've mentioned above, there's this almost throwaway paragraph at the end. To wit:
For an inosculated fence, elm, a number of the oaks, olive, dogwood, beech, hornbeam, peach, almond, hazel (filbert), a number of the willows, sycamore, grape and wisteria. Trees with pliable branches are especially suitable, with apple, hawthorn, linden, and pear among the best.
Now, I keep having to look up "inosculate." I think it means "to fit close together by intertwining."
Anyway. My thinking. While Osage orange may not be hardy where you are, surely some cultivars of some of the other species on that list are.
But, apart from that, I just,think the idea of living fences is just wickedly cool. My internet searches have turned up precious little in the way of examples. Just a lot of instructions in how to do it. Would love to share notes with someone constructing one now. Particularly pics in progress.
When I get started I'll post my progress here