Argentine grass is an ideal plant if you want protection for your lawn against drought. It has a deep root system and can obtain water easier than most grass. It has a darker color and finer texture than many other grasses. It is also easy to plant, thus is a popular choice for planting in the southern U.S.
Clear the planting site by collecting plant debris, stones and rocks in a wheelbarrow. Dispose of these appropriately, or save them for any future landscaping project.
Rent a tiller and till the planting site to a depth of about 6 inches. Turn up the loose soil so that the nutrients are released and the seed can take hold easily. Rake it smooth and remove any debris that could prevent new growth.
Conduct a soil test for your lawn so that you know how to care for it (you can purchase at soil test at many large home stores or garden centers). With the soil test, you will know if your lawn needs lime or its pH needs to be varied. Lawns and grasses grow favorably in soil with a pH between 6 and 7. Adjust the pH of the soil by adding sulfur if it is too high, or lime if it is too low.
Purchase a seed spreader to help spread the grass seeds across the lawn, and good quality argentine grass seeds. Begin by placing half a bag in your spreader and spread it over half the lawn, continue the same for the other half of the lawn. Make sure the seed gets at least ¼ inch deep in the soil.
Water your lawn every day, making sure the soil is always damp and moist. Do not let the top ½ of the soil get dry. Once the grass starts to sprout, reduce watering frequency to twice a week.