What action should you take if granular fertilizer is spilled on an impervious surface?

When granular fertilizer is spilled on an impervious surface, the best course of action is to sweep or blow it back onto the lawn. This method effectively minimizes environmental impact by preventing potential runoff that could occur if the fertilizer is washed away with water, which can harm nearby bodies of water by contributing to nutrient pollution.

Sweeping or blowing the fertilizer back onto the lawn allows it to serve its intended purpose, promoting plant health and growth without creating a risk of harming aquatic ecosystems. This approach helps ensure that the nutrients are utilized by the grass or plants, where they are needed, while maintaining adherence to best practices in fertilizer management.

Alternatives, such as washing the fertilizer away, may lead to leaching and contaminating ground or surface water. Leaving it to break down naturally or covering it with soil would not effectively utilize the fertilizer and could result in the loss of nutrients, as well as potential environmental concerns.