Thatch is a layer of dead turfgrass that usually sits below the green grass but above the soil. It is not good for the health of your lawn. Thatch prevents all of the necessary water and nutrients from reaching the roots — thus, preventing your lawn from reaching its true potential.
Luckily, there’s a process for removing thatch from your lawn — dethatching.
While mowing and watering are things you should be doing regularly, dethatching is something that should be done as soon as it’s needed (which is usually once or twice per year during the early spring and late fall).