Study of species in landscape’s city and introduction of new species according to, climatic condition fluctuation, establishment of high building, increasing of environmental pollutions, resources limitation and increasing biotic and abiotic stresses on plants is an important object in permanent landscape development. In addition to, this environmental and ecological factor in selection of adapted plant species in landscape’s city, in order to, durability of development of permanent landscape planets, also, economical factors are very important. Expenses of plant species preparation, design of planting and management are affecting agent in cost estimation for making developmental landscape’s city plan. Selecting of species that have low expenses in buy and maintaining during the time, have been reduced significantly project expenses. In fact, these projects in theory stage will have not stopped and as soon as enter the performances stages.