Thatches are the plant roots (living or dead) that fill out the layer of soil immediately between the soil’s water deposits and the plants on the surface. Too thick a thatch and not enough plants will be able to grow. Needless to say, you should definitely read this guide on how to dethatch your lawn.
Nobody Likes a Dead Lawn
Thick thatch can prevent even the hardiest of grass species from having access to water. Obviously, since plants need water, thatches are bad and can lead to the death of your entire yard if left unchecked.
Get Those Thatches Out of Here!
The simplest way to dethatch a yard is to take an ordinary rake and manually agitate the entirety of your lawn about two to three inches deep. Of course, this is expert-level stuff and might leave beginners with a devastated lawn, so using a power dethatcher might be preferable.
While thatching, the key goal is to increase aeration. This is done by ripping up the thatch layer, agitating the surface, and enabling the soil to “breath,” so to speak.
After the entire surface of the lawn has been dethatched and agitated, that is a great time add additional grass seeds, fertilizer, and a little bit of water to kickstart the revitalization of your lawn.
Thatches are the bane of any DIY landscaper, oftentimes because they go completely unnoticed. Residing an inch or so beneath the soil, thatches are impossible to see. So watch for the symptoms and dethatch regularly just in case!