The gently sloping avenue of honour creates a perspective as it passes through a woodland of oak and hornbeam trees, a space created in the 18th century (appearing on Pierre de Belleyme's map in 1766) called Bois Percés, divided by paths with green rooms at the crossroads. Everything is arranged symmetrically. The plant palette consists of pedunculate oaks, red oaks, lime trees, sycamore and plane trees, robinia, hornbeam, ash trees, chestnut trees and plane trees.

The connection between the formal garden and the landscaped garden is organised around the Serpentine. The Serpentine River is the symbol of naturalistic gardens. Its shape was redesigned in the 19th century into a ribbon or S shape by Siaurac.

The landscaped park designed by Louis-Bernard Fischer is home to some remarkable trees: a 350-year-old holm oak, a 250-year-old pyramid oak, an Atlas cedar, a Virginia tulip tree, a giant sequoia, and more. The walking paths are laid out in a flowing pattern from the castle steps. Groves of trees and shrubs surround the park: sweetgum, chestnut, birch, Apollo and Alexandria laurel, boxwood, and more. The grand perspective from the steps offers a unique view of the Collegiate Church of Saint-Emilion.