Editing Garden design (section)

===Boundaries===
{{further|Hortus conclusus|Walled garden}}
The design of a garden can be affected by the nature of its boundaries, both external and internal. In turn, the design can influence the boundaries, including via creation of new ones. Planting can be used to modify an existing boundary line by softening or widening it. Introducing internal boundaries can help divide or break up a garden into smaller areas.

The main types of boundary within a garden are hedges, walls and fences. A hedge may be evergreen or deciduous, formal or informal, short or tall, depending on the style of the garden and purpose of the boundary. A wall has a strong foundation beneath it at all points,<ref>{{cite book|title=The Garden DIY Expert|url=https://archive.org/details/isbn_9780903505376|url-access=registration|publisher=pbi publications|year=1992|isbn=0-903505-37-1|author=Dr D. G. Hessayon|author-link = D. G. Hessayon}}</ref> and is usually – but not always – built from brick, stone or concrete blocks. A fence differs from a wall in that it is anchored only at intervals, and is usually constructed using wood or metal (such as iron or wire mesh).

Boundaries may be constructed for several reasons: to keep out livestock or intruders, to provide privacy, to create shelter from strong winds and provide micro-climates, to screen unattractive structures or views, and to create an element of surprise.