How to apply seed with a hydroseeder

A hydroseeder is a machine that attaches a nozzle, pump and hose to a holding tank. Water, seeds, mulch and nutrients, such as lime and fertilizer, can be mixed in the tank and sprayed by low pressure onto a large area of a yard. Using a hydroseeder saves both time and money when repeated applications are need in the same area. A hydroseeder's water spray spreads seeds and other elements quickly and provides instant moisture. The mulch provides a protective layer over the seeds. The result is typically a faster growing lawn or garden bed than can be achieved by traditional methods.

Prepare the area to be seeded by removing rocks and other debris from its surface. Rake the current soil or provide at least a 1-inch-deep layer of topsoil over the current soil, and rake it smooth. Raking soil helps seeds take root in it. 

Add water to a hydroseeder's tank until the water level reaches the machine's agitating blades，and close the hose end of the tank. Make sure the pump and agitator are turned off.

Turn on the hydroseeder, and allow it to operate for some time. Turn the agitator knob starting the agitator. The agitator should be operated at a speed what will mix the tank's contents slowly.

Place small batches of mulch, one batch at a time, into the tank. Add to the tank the seeds you want the hydroseeder to apply. Put in the tank the nutrients you want the machine to apply, and allow the tank's contents to combine thoroughly.

Turn off the hydroseeder's agitator. Turn on its spray nozzle. Pull the machine, depending on its size, to the area you prepared to seed. Stand at a location where you can spray the area's farthest corner.

Place the hydroseeder's hose nozzle over your shoulders. Turn on the nozzle, and using long strokes to spray the hydroseeding mixture, start in the prepared area's farthest corner and work toward your position. Adjust the spray stream if need. Continue spraying until the prepared area's soil is completely and evenly covered with the hydroseed mixture.

Water the hydroseeded area for about 5 minutes up to 3 times daily for two weeks. The area needs to be kept moist until seedlings appear.