What is a 1/2 inch of accumulated organic material in a grassy area called?

What is a 1/2 inch of accumulated organic material in a grassy area called?

• A. thatch layer
• B. stolons
• C. ground cover
• D. mulch

Answer: (A)

That buildup is called thatch. Thatch is a layer of both dead and living plant material that sits between the soil surface and the green above it in a lawn. It includes things like dead blades, stems, crowns, leaf sheaths, roots, and other organic matter. A thin thatch layer up to about half an inch is normal and can even protect the soil, but when it thickens beyond that, it starts to smother the grass, reduce water and nutrient penetration, and trap heat and pests. You can check it by taking a small soil core and measuring how much material sits on top of the soil before you reach the exposed soil. Stolons are horizontal stems that some grasses use to spread, not a buildup on the soil surface. Ground cover refers to a plant that grows over the soil to cover it, not the material accumulating in a lawn. Mulch is material spread on garden beds or around plants to conserve moisture, not the debris layer that forms in a turf.

That buildup is called thatch. Thatch is a layer of both dead and living plant material that sits between the soil surface and the green above it in a lawn. It includes things like dead blades, stems, crowns, leaf sheaths, roots, and other organic matter. A thin thatch layer up to about half an inch is normal and can even protect the soil, but when it thickens beyond that, it starts to smother the grass, reduce water and nutrient penetration, and trap heat and pests. You can check it by taking a small soil core and measuring how much material sits on top of the soil before you reach the exposed soil.

Stolons are horizontal stems that some grasses use to spread, not a buildup on the soil surface. Ground cover refers to a plant that grows over the soil to cover it, not the material accumulating in a lawn. Mulch is material spread on garden beds or around plants to conserve moisture, not the debris layer that forms in a turf.