Perennials are simply plants that live more than two years. Usually the term refers to plants with little or no woody growth, although technically trees and shrubs are perennials too. Our garden has a special section dedicated to these plants, but they are also found extensively throughout the entire garden. The formal Perennial Garden has a backdrop of Irish Yew (Taxusbaccata), the other side being enclosed by a low wall of Haddington stone which frames the island beds. More perennials can be found in the Bentall Garden, the Black Garden, and other flower beds (sometimes annuals are mixed in to provide more colour and fill in bare spots).