Is pea gravel classified as an organic mulch?

Pea gravel is classified as an inorganic mulch. Inorganic mulches, including materials like gravel, rocks, and plastic, do not decompose. They serve different purposes compared to organic mulches, which are typically derived from natural materials like bark, leaves, or straw that break down over time and improve soil quality as they decompose.

Using pea gravel as mulch can help with moisture retention, temperature regulation, and weed control, but it does not provide the added benefits of enriching the soil, which is characteristic of organic mulches. Therefore, it is accurate to categorize pea gravel as an inorganic mulch, making the selection of "No" the correct choice.