Till up dead grass and weeds with a motorized tiller. Till 3 to 4 inches to create a loose soil base for the roots of your new hydroseeding. Rake up grass, leaving behind as much soil as possible. This is also a great time to remove any rocks, sticks, or debris to even out your planting area.
A rotary tiller, commonly known as a rototiller, is a motorized cultivator with tines or blades that rotate through the soil, pulverizing it and breaking up clumps into a finer texture.
Rototillers can be walk-behind, where you literally walk behind it as it pushes through the soil, or ride-on, such as those found as an attachment to a lawn or compact tractor.
Tilling the ground it is one of the best ways to obtain great results for your hydroseeding, the ground will be turned over ready to take all nutrients for a successful new lawn.

