Outline of garden art and history, related to the vegetal components. Analysis of formal garden, landscape garden and green urban landscape. Problems of the restoration of historic garden, seen as cultural heritage, by the light of the restoration theory, following the National and International ‘Charters’ and law regulations. Operating lines and ways to operate on historic green areas following the ministry instructions. Researches, analysis and observational data to realize the restoration project, materials and devices to execute the works and for the maintenance of the garden. Conservation and enhancement of the garden as part of a cultural landscape.