What are common signs of over-watering plants?

The identification of yellowing leaves, root rot, and wilting despite moist soil as common signs of over-watering is based on how plants respond to excess moisture. When plants receive too much water, the roots can become saturated, leading to a lack of oxygen in the soil. This condition causes the roots to deteriorate and potentially rot, a phenomenon known as root rot. As the roots are compromised, they are less able to absorb nutrients and water effectively, which manifests as yellowing leaves due to nutrient deficiencies.

Additionally, over-watered plants may exhibit wilting symptoms despite the moist soil, which can be counterintuitive. This occurs because the roots are unable to take up water effectively when they are damaged, resulting in the plant showing signs of wilting because it is essentially 'drowning.' Recognizing these specific symptoms is crucial for proper plant care and water management.

While the other options mention symptoms associated with plant health issues, they do not specifically point to the characteristics that clearly signal over-watering. Understanding these signs is key for a landscape professional to maintain healthy plants and avoid over-watering mistakes.