This article is about the walled garden in its original horticultural sense. For other meanings, see Walled garden (disambiguation)

A Walled Garden is a garden which is surrounded by high walls. Whilst these walls may now serve a decorative purpose, their original purpose was to shelter the plants within the garden from winds and frosts. The shelter provided can raise the ambient temperature within the garden by several degrees, thus permitting plants to be grown that would not survive in the natural climate of the location.