Noise pollution is one of the most important features of architectural spaces having a great impact on the comfort of residents. Therefore, providing appropriate and sustainable solutions for noise pollution control is essential. Today, with the use of man-made synthetic materials, it has been tried to improve the sound performance of buildings. The purpose of this study is to show the characteristics of plants for noise absorption and noise reduction and to find suitable species to use in interior walls of buildings to reduce noise pollution between the two adjacent spaces. Library studies were first used to identify plants and their morphology in order to identify plant species with these characteristics. Adaptability of acoustic principles to plant tissue was also assessed, and then the species morphological parameters were extracted through laboratory calculations and measurements using scales, calipers and AutoCAD software. The results showed that Nephrolepis Exaltata (Boston ferns) has more sound absorption. As a result, the sound absorption can be improved by the use of covered walls. It can also be assumed that non-native species present in Iran exhibit better sound absorption than native species
