"Greta" is an innovative web application that addresses the pressing issue of water waste in irrigation systems, particularly in light of climate change and the limited availability of water resources. By utilizing advanced algorithms, electronic sensors, and real-time weather forecast data, "Greta" provides a comprehensive solution to significantly reduce water waste. This cutting-edge application serves the needs of both farmers and private home garden owners, offering a customized irrigation schedule based on factors such as plant type, climate conditions, and individual watering requirements. With an intuitive web interface, user management functionality, automatic scheduling, and timely notifications regarding extreme weather conditions and system failures, "Greta" ensures efficient and responsible water usage. Additionally, "Greta" incorporates humidity sensors to enhance the precision of its results. Users can also track their irrigation history through an activity log and retain the flexibility to override the automated schedule if necessary. It's important to note that "Greta" relies on external factors like reliable weather forecast APIs and a stable Wi-Fi connection. By implementing "Greta," users can actively contribute to water conservation efforts, reduce water expenses, promote healthier plant growth, and foster sustainable water management practices.