Making a come back in the landscape design world of late, is the art know as "laying a hedge".
Before the chainlink, stockade and estate fencing we have come to know today, fencing of this nature was a common practice dating back more than 2000 years.
The 2000+ year old practice ( Caesar described the process of hedgelaying in 57 BC in his Gallic War "after encountering laid hedges at Nervii in Flanders " ) uses trees and shrubs such as Hawthorne, Hazel, Crab Apple, and Holly to create a woven almost basket like fence, good for not only keeping the animals in but also a great wind and privacy screen depending on the type of plant material used.
Because it is a living fence, it not only will change with the seasons, giving continually interest, but with proper maintenance can live indefinitely.
It is said "Judith's Hedge" in Monks Wood, England is believed to be over 900 yrs old.
via inspiration green