What is the ideal temperature for water when watering plants?

The ideal temperature for water when watering plants is tepid or room temperature. This is because water that is too cold can shock the plants and inhibit their growth, as roots may not absorb it efficiently. Conversely, very hot or boiling water can damage plant tissues and roots, potentially killing the plant. Tepid water provides a comfortable temperature that is conducive for absorption without causing thermal stress. It encourages healthy root function and supports optimal growth conditions. Plants generally prefer water that is similar to the temperature of their surrounding environment, which helps maintain their physiological functions without stress.