What is a common sign that a plant is being overwatered?

Yellowing leaves is a common sign that a plant is being overwatered due to excess moisture in the soil that can impede the roots' ability to absorb oxygen. When roots are saturated and unable to function properly, the plant struggles to take up nutrients and water efficiently, leading to chlorosis, which is the yellowing of leaves. This yellowing often starts from the bottom of the plant and advances upwards as the condition worsens.

In cases of overwatering, the roots may also begin to rot, further exacerbating nutrient uptake issues and making the plant more susceptible to disease. Therefore, yellowing leaves serve as a vital indicator of overwatering, allowing for corrective measures to be taken before more severe damage occurs.