In Italian landscape design, the hortus conclusus, or the enclosed garden, has served as an instrument of negotiation between tradition and modernity. Beginning with the Pompeiian peristyle garden, then moving onto Renaissance-era and modern translations, this series of analytic drawings traces the enduring significance of the hortus conclusus and its role in establishing continuity throughout disparate temporal and regional contexts. Though radically different in their functions and compositions, the gardens engage with concepts of enclosure and boundary to explore the theory and design of landscape within defined spaces, both alluding to and questioning the idea of the hortus conclusus.