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All grass forms a layer of dead plant material, known as thatch, between the grass blades and the soil. When grass thatch gets too thick it prevents water and nutrients from reaching the grass roots, and provides humid moist conditions for fungal lawn diseases to take a hold.
Scarification can be used to help remove heavy grass thatch from the lawn. When the grass thatch is so thick that scarification is required, the grass roots are clearly not penetrating into the soil. Therefore the lawn should always be aerated following scarification to facilitate root penetration.
TruGreen lawn care technicians carry out scarification at the beginning of the growing season (Spring or early Autumn) to allow the grass to recover from this rigorous process as fast as possible. Because of the stress that scarification places on the healthy grass plants it is not done routinely, but only when it is apparent that it will specifically resolve some difficulty or problem.
Care is taken to remove as few healthy plants as possible during the process however the process may result in a need for overseeding. To help recovery and provide a lawn better able to cope with the stresses that are a particular issue in your garden TruGreen will overseed your lawn with a specifically chosen professional seed mixture when your lawn has been scarified.
To help you understand Scarification and why it is required TruGreen have anwsered some common questions below:
Your TruGreen lawn care specialist will be pleased to advise the best time for the scarification of your lawn if necessary.