What is an indicator of adequate watering in plants?

The presence of full leaves is an indicator of adequate watering in plants because it signifies that the plant is turgid, meaning that its cells are filled with water, which helps to maintain structure and integrity. When plants receive the right amount of water, they can effectively carry out vital functions such as photosynthesis and nutrient transport, which results in healthy growth and the development of robust foliage. Full leaves indicate that the plant is hydrated and functioning optimally, reflecting proper watering practices.

In contrast, wilted leaves often signal a lack of hydration, as the plant loses turgor pressure and is unable to maintain leaf firmness. Shortened internodes can indicate stress due to insufficient watering or other environmental issues, rather than signaling adequate hydration. Similarly, smaller flowers may emerge from plants that are not receiving enough water, as the plant diverts resources away from reproductive growth in times of stress. Therefore, full leaves are a clear and positive sign of adequate watering, while the other options reflect various forms of distress that can arise from improper watering practices.