What is the main symptom of overwatering a lawn?

The main symptom of overwatering a lawn is yellowing of grass blades and poor growth. When a lawn receives too much water, it can suffocate the grass roots, leading to a lack of oxygen in the soil. This condition inhibits root development and can create an environment that is conducive to root rot and other disease issues.

The yellowing of grass blades is often observed as the grass starts to decline in health. Healthy grass typically has a vibrant green color, but when the roots struggle due to excess moisture, nutrient uptake is hampered, resulting in a yellowing appearance. Additionally, as the grass becomes stressed from overwatering, it may exhibit stunted growth, leading to an overall weaker appearance of the lawn.

This phenomenon differs significantly from symptoms like wilting, which is more commonly associated with underwatering or drought stress, or cracking of the soil, which would indicate a lack of moisture rather than excess. Increased weed growth can happen in various conditions but is not a direct symptom of overwatering.