When should plants be watered why?

Plants should be watered when the top inch of soil feels dry to the touch, as this indicates that the soil moisture is low and the plant may be experiencing drought stress. Watering early in the morning or late afternoon is ideal, as it allows for better absorption and reduces evaporation losses. Consistent watering helps maintain healthy growth, promotes root development, and prevents stress-related issues such as wilting or leaf drop. Overwatering should be avoided, as it can lead to root rot and other problems.