Spring or early summer is the time to seed, sod, or sprig a yard, when the ground is warmer. For a new lawn, adding a fresh load of topsoil to the ground is beneficial. Seeding the lawn is the least expensive way to plant, but it takes longer for the lawn to grow and usually needs daily watering, or the freshly-sprouted grass will die. Sodding is more expensive, but it will provide an almost instant lawn that can be planted in most climate zones in any season. Hydroseeding is a relatively quick and inexpensive method of planting. A nitrogen-based, slow-release fertilizer should be applied, as well as a weed killer and a product for lawn pest removal.