Phytoremediation is discussed in this article; it is a green technology that makes use of plants to cleanse, stabilise, and eliminate environmental toxins. We looked at three examples: the use of sunflowers to remove radioactive contaminants from water in Chernobyl, Ukraine; the use of willows to stabilise and reduce heavy metals in soil in Silver Bow Creek, Montana; and the use of alpine pennycress to remove heavy metals from contaminated soil in Bunker Hill, Idaho, USA. The key findings emphasise the adaptability of phytoremediation, the significance of plant selection, and the long-term viability and scalability of this approach. More funding should be allocated to support phytoremediation research and application, as well as more research to identify more phytoremediating plant species and promote phytoremediation as a cost-effective and environmentally friendly alternative to traditional remediation methods. This extensive analysis highlights the potential of phytoremediation as an efficient approach to environmental cleanup.