Getting your grass to look as bright and lush as possible is also about optimizing its health. Make sure that it is getting full light (although it is all right for there to be some partial shade during the day). Trim any branches that might be keeping sunlight from the grass. You want it to get 1/2-inch to 3/4-inch of water per application, seasonally adjusting based on its growth needs. You may need additional water though, depending on specific conditions. Maintain a grass height of 4-5 inches with regular mowing. Fertilize with 2-5 pounds of nitrogen annually, using products that have high-quality, slow-release nitrogen content so you can meet (and not exceed) 1 pound of nitrogen per 1000 square feet.