Lawn Dethatching - Knowledgebase Question

succasunna, Ne
Question by bobpeters99
April 21, 2009
I have quite a bit of dead grass, If I de-thatch in the spring and dont seed until spring, will weeds or unwanted growth cover the thatched area, or should I de-thatch in the fall. the reason I would like to de-thatch in the spring and wait is to apply some weed killer and fertilizer before the fall

Answer from NGA
April 21, 2009


Thatching removes the dead stolons, rhizomes, stems and old grass blades. All turfgrasses have thatch but a thatch layer that is too thick can keep water from penetrating down to the roots and can keep fertilizers from reaching the soil. If your turf has excessive thatch, more than one inch of thatch, then you should dethatch your lawn, then overseed this spring. If you don't want to overseed until fall, wait and dethatch in the fall and then overseed. The choice is yours. Best wishes with your lawn!

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