[Ellendra]

In rural areas especially, it's possible to make barriers that look natural, and thus won't proclaim that there are people with things to protect. For example, it's easy to encourage thorny, viney plants like greenbrier to take over an area. My land is already covered in a mix of wild roses, black caps, nettles, and wild parsnip. It wouldn't take much to weave those into a natural-looking barrier.

[Pete from Shawnee Mission]

Make fencing of thorny stuff. Plant it inside your lot line,cut it low the first year, weave it together as it grows. (Greenbrier and Hell-fetter bindweed are really nasty brambles. I don’t know that I would want them around even if they are effective.)

Here we go. A link to the place where the left wing loops back on the right!

http://www.motherearthnews.com/homesteading-and-livestock/living-fences-zmaz10onzraw.aspx#axzz2eGBP4QWf

In Kansas there are a lot of Osage Orange trees used as fencing. Easy to plant. begins to grow, string your barbed wire right between the young trees.