Arizona is a state with hardiness zones ranging from 5b through 11. While Arizona winters are quite mild, summer temperatures reach on average above 115 degrees. These conditions combined with low rainfall and poor soil conditions make growing grass in the summertime a difficult task. Recommended grasses for Arizona are bermuda and desert specific turfgrass.
Remove all debris from the yard using a rake. Debris includes any rocks, weeds, litter and construction material.
Work the soil with a till to soften the top 6 inches.
Roll over the entire surface with a water roller to locate any uneven patches and fill them in with soil.
Sprinkle a 10-5-5 starter fertilizer over the surface of the ground. On average the soil will require 40 pounds of fertilizer per 1,000 square feet.
Disperse the grass seed over the surface of the yard using a seed disperser. Disperse half the seed in one direction and half in a perpendicular direction for the best seed coverage.
Roll over the yard again with the water roller to help the seed make contact with the soil.
Sprinkle 1/4 inch of mulch over the surface of the yard. This will allow for better moisture retention and prevent the seeds from burning in the afternoon sun.
Water the yard in 10 minute spurts five to six times each day to ensure that the ground remains moist. Continue this watering practice until the seeds sprout and grow to 1 inch high. At that point, decrease the water to once daily, in the morning. After the grass' first month, it will be established enough to reduce watering to every other day, unless the temperatures exceed 110 degrees, at which point it will need to be watered daily.