"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Decayed grass blades and stems—known as thatch—can prevent your lawn from absorbing the water and oxygen ...

There may be a silent assassin choking the life out of your lawn. A thick layer of unwanted organic material, or thatch, sitting at the base of your grass could be preventing it from getting the air, ...

A bit of thatch isn’t always a bad thing. That layer of material at the base of your lawn, living and dead, helps the grass retain water and restore nutrients to the soil. Left unchecked, though, it ...

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