Dethatching - Knowledgebase Question

Silverton, Or
Question by katjeff1
July 15, 2009
what is thatching a lawn?


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Answer from NGA
July 15, 2009

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Dethatching is a practice used on lawns that produce heavy woven mats of stolons or runners. It's done in spring before the lawn gets off to a new start. The steps, in order, are: 1) scalping -- setting the mower as low as it will go and taking the grass to within 1/2 inch of the ground; 2) dethatching -- using a rented machine that rakes the mat of runners right out (hand dethatchers are available but they are not efficient and can wear out the best of us if the lawn is large); 3) aerating -- using a rented piece of equipment that removes small plugs of soil which you then fill in by raking compost across the lawn. If you plan to reseed your lawn, raking by hand or with a power dethatcher will remove debis and old grass so the grass seeds can make good contact with the soil and root well. Best wishes with your lawn.

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