Some thatch is good, but too much can lead to disease and prevent nutrients from reaching the roots. Here's how and when to dethatch your lawn for healthy grass.
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When to dethatch your lawn

When is the best time to dethatch your lawn? You may have heard that dethatching is important to keep your lawn thriving, but you might not know exactly what it is or what the process entails. Simply ...
Over time, grass clippings, leaves, and other debris left on your lawn form a thick spongy layer known as thatch. The process ...
Dethatching can be performed with a manual or powered rake, or a rotary broom. (StatePoint) Dethatching your lawn has numerous benefits. But if you’re not sure what dethatching is or how to do it, you ...