There are different climates in Iran; therefore there is a wide variety of herbs as well. Using these species in green areas and parks doubles the species and ecotypes variety (color, form, size and compatibility) and ensures success and flexibility of the design. Having herbs in urban areas is a demonstration of climatic and cultural potential of the region. Since we need much more green areas to reach international standards, by including herbs in the list of proper plants for urban areas we would have a considerable growth in amount of herbs. By planting herbs in green areas, a part of expenses can be returned and since these places are close to industrial and commercial centers, the expenses of transportation decrease as well. Planting herbs in green areas makes it possible for people to better recognize them. Specifying the green areas of educational centers to planting herbs makes researching about them possible and determines their compatibility with different environments. A very effective solution of soil erosion is leaving the remains of herbs in it. Some herbs have a considerable sustainability against salinity, alkalinity of soil, severe sun radiation, marsh condition, severe recision, etc.
