Hedging and shelterbelts are a vital part of creating natural boundaries and divisions within a planting scheme. They protect the main planting areas from ravages of wind, frost and other weather extremes.
A small microclimate can be created within these boundaries to accommodate more exotic planting that wouldn't otherwise survive.
Hedging can also offer the added bonus of providing natural habitats for wildlife and birds. choosing the right hedging can also provide a substantial burglar proof barrier.