Orchard and tree - the Garden of Eden - date back to the very beginning of mankind. Throughout the centuries, they became the symbols of happy and peaceful life. The author juxtaposes this tradition to the wonton devastation of parks, trees and green areas taking place nowadays. He advocates active conservation with a particular emphasis on revalorization. This not only involves the conservation but also adaptation for functional contemporary purposes. It can also include supplementation, reconstruction and re-composition.