The layout of this area, dating from 1713 – 1719, is a rare surviving example of a formal wilderness garden. In the 18th century wilderness meant an area densely planted with trees and shrubs. The original structure can be seen on engravings dating from the 1730s. Two areas were designed in the shape of the Union Jack Flag.  The beds were planted with oak and edged with yew, holly and laurel, which was kept trimmed at a height of about 2.4m/8ft. Some had niches cut into them which may have contained sculptures or seats.

More on the Restoration of the Union Jack Gardens.