Sowing grass seed is by far the cheapest method of creating a lawn. The best time to sow seed is in spring or fall. Seed can be sown in the summer but will need watering regularly; in the winter temperatures are usually too cold for the seed to germinate.
watering can with a rose or a hose with spray attachment
seed spreader (optional)
Half of the seed should be spread in one direction and the other half perpendicular to this. Ensure that the seed is distributed as evenly as possible for the best results.
It should ideally be covered by 1/16-inch of soil although it can germinate on the surface. Water using a can with a rose or a hose with a spray attachment. Grass will emerge in one to two weeks.
This alternative to hand sowing is ideal if you have a large area of ground to cover. It will need to be calibrated to your walking speed so that it distributes seed at the correct rate. Use a tarp to get a neat edge.