Dhaka, the capital city of Bangladesh and a city of at least 22.5 million people made it one of the most densely populated countries in the world which suffered unrecoverable damage to the green areas of the city (Nation, 2021). Having the most polluted air, the residents of this city are forced to live in a dusty, polluted, toxic, and poisonous environment. The rapid growth of Bangladesh`s capital has destroyed crucial ecosystems, caused rising temperatures, and quickly lost its green. One of the ways to bring back its green area, and good air in any particular area is “rooftop gardening”. This research focuses on the impact of rooftop gardening on people and the environment. What are the challenges of the garden and how to deal with it has been identified in this research. The benefits of rooftop gardening and what are the present scenario have been described in this study. For this, aim of this study is to explore the prospects of rooftop gardening in Dhaka city. The purpose of the study is to find out the effectiveness of gardening based on economic and environmental concerns. This study has been conducted by collecting primary and secondary data. Both types of primary data such as qualitative and quantitative data have been used to complete the analysis part. The data collection has been done by questionnaire survey conducted at selected households. By analysing the data, it is found that rooftop gardening is economically profitable. There is some decent amount of income coming from gardening. Besides, rooftop gardening is quite environmentally beneficial. It reduces temperature by almost 2.3⁰C of the roof and 1.9⁰C of the top floor of the building. Finally, some recommendations have been provided to deal with the challenges as well as to improve the present scenario of rooftop gardening in the study area.