Plants are living organisms that complete humans and the relationship between the two has always beendirect and continuous. For instance, humans have partaken in gardening and planting for thousands of years. Inconventional gardening, plants are watered manually by the gardener. This is deemed to be time-consuming, andless efficient. Therefore, this project introduces an Arduino-based automatic water irrigation system for indoorplants, utilizing a minimal yet effective set of components with the sole purpose of producing an efficient andconsistent watering schedule for two identical indoor plants. The well-being of the plants was also observed for oneweek. The Arduino UNO software used in this project categories the sensor data into three moisture levels, displayedon the LCD as “No moisture, very dry soil,” “Little moisture, soil is damp,” and “High moisture, soil is wet.” Thewater pump operates accordingly, turning on when the soil is dry and off when appropriately moist. Based on thiscategorization, if the moisture of the soil is 350 units of soil moisture sensor or below, the plant is considered moist,if the moisture is 950 units and above, it is considered dry. Arduino-based automatic water irrigation system mayoffer a sustainable and efficient solution for water management resources for modern gardening, landscaping, andagriculture.