Located on the west wall of the garden was a large shrine. This took the form of a large niche with an aedicula façade with a smaller niche beside it. The pediment, which extends over the pilasters on either side, was decorated with polychrome stucco cornice surrounding a blue tympanum. The interior of the niche was divided into two. The upper section contained a depiction of a single serpent on a white background advancing towards a cylindrical altar of imitation marble. In the background were plants as well as a double garland with taeniae along the top. The lower section was a solid red panel with an aedicula façade in white stucco, within which the figure of Ceres stood. She held a torch and a sheaf of grain, and was painted in white monochrome. A second niche was located just to the north of the aedicula structure and sat 1.00m above the ground. While Boyce does not believe this was used for religious purposes, this niche has the frequent red border seen in other cult niches as well as a projecting base painted in imitation marble. Additionally, garlands were painted on the interior sides of the niche.