Smart irrigation refers to advanced watering systems that use technology to optimize water usage for plants and crops. These systems often incorporate sensors, weather data, and automated controls to determine the precise amount of water needed, reducing waste and promoting healthier growth. By utilizing soil moisture sensors and weather forecasts, smart irrigation can adjust watering schedules based on real-time conditions. This not only conserves water but also helps farmers and gardeners save money on water bills while ensuring that plants receive the right amount of hydration for optimal growth.