Application of vertical green walls (VGW) to address the environmental challenges due to urbanization, energy consumption, and GHG emissions, particularly in tropical regions has vital impact. Experiencing hot days with higher temperatures is increasing. Thus, it is essential to assess how effectively green walls can cool the envelope and built structures. This paper investigates the function of green walls as a strategy toward nature-based solution in moderating the UHI effect and heat-stress related challenges of built environment particularly in tropical climate. An investigation assessing the effect of VGW located in the city of Vijayawada, Andhra Pradesh, India, is done. The study provides a detailed understanding of green wall with elephant bush (P. Afra) plant species and thermal imaging study assessing surface temperature comparison between bare wall and vegetated wall surface. An average reduction of around 6.5 °C in the surface temperature from bare wall to vegetated wall is observed in the results. Also, comparison between ambient air temperature outside and external surface temperature is discussed while focusing onto the cooling and shading effect of the VGW. Overall, the study highlights the potential of VGW to significantly enhance sustainability and urban planning paradigms in tropical regions. The study has also highlighted the constraint of present study and identified the further scope of research in the concerned domain.