Situated beneath the main house and at the top end of the long borders, this formal parterre was laid out in 1998. Inspired by the owner's first visit to Villandry in the Loire valley, it consists of two larger borders and low box (Buxus sempervirens) hedging, marking out 16 separate compartments. Specimens in the larger borders include many different shrub roses and shrubs such as Pacific dogwood (Cornus nuttallii ‘Gold Spot’). The parterre features an east to west aspect and is framed on the western side by a sloping avenue of pin oak (Quercus palustris) and a pair of Italian cypress (Cupressus sempervirens). In the compartments planting is seasonal, during the spring planting combines wallflowers (Erysimum) and forget-me-nots (Myosotis) with tulips (Tulipa spp.). The wallflowers and tulips are lifted in early summer and replaced with a summer planting scheme. This consists of sweet peas (Lathyrus odoratus) or tender climbers such as morning glory (Ipomoea tricolor) grown up obelisks, under planted with bedding such as Cosmos, Nicotiana or Rudbeckia hirta ‘Prairie Sun’.
In late 2018 to early 2019 the parterre and rose garden was extended westwards up the hill towards the tree house to join the newly developed fountain garden. The extension is set on two levels, its planting design follows the same pattern as the original garden. It contains four further compartments, two on each level. Spindle (Euonymus japonicus ‘Jean Hugues’) has been used for the hedging instead of box (Buxus sempervirens) in the extension due to an outbreak of box blight disease (Cylindrocladium buxicola) in this part of the garden. In future it is likely that all the hedging in the parterre will be replaced with Euonymus.