I love this idea for putting posts up, for lamps, that can also be fence or divider connectors. I like hiding a sturdier metal post inside a fabricated wood post, then attaching the remainder of the fencing to it. Great for high wind areas.
A lattice fence and arborvitae provide an attractive low-cost solution. Shown here is the Eastern arborvitae (Thuija occidentalis), which will eventually grow to about 20 to 30 feet high and 10 to 12 feet wide. - My Wonder Garden