The third and smallest garden enclosure is an immaculate and intricately designed parterre garden. The surface of the parterres are covered with a collection of different coloured minerals including: sea shells, crushed lime mortar, brick dust, coal dust, white and orange sands and grass - all arranged in undulating formal patterns. The Orangery Garden as it is seen today is an impression of how this space would have looked whilst the Morgan's lived here in the eighteenth century.
The Orangery itself today houses a variety of fruit trees and herbaceous plants known to have been grown during the eighteenth century. During the 1930s the Orangery was used by Evan Morgan, not only for his infamous garden parties but also as a place to keep his exotic birds.