Before 1856, the park area was bare, with only some shrubs and thorny bushes. Today, on the other hand, there is a group of different species of trees that are, for the most part, of non-European origin or in any case, that are not native to the area. Within a period of ten years, cedars of Lebanon, North Africa and the Himalayas were planted, along with firs and spruces from Spain, cypresses from California and Mexico, various species of pine from Asia and America, to which some exotic specimens, such as the giant sequoia and the ginkgo biloba, were added. Miramare was conceived as a private garden and not as a park.