A new lawn, either sodded or seeded, will require much more frequent watering, but don't water excessively. Too much water can be as damaging as too little. To determine how much water your sprinkler system supplies, place tuna fish cans at various places throughout the lawn. Run the sprinklers for half an hour and measure the water in the cans. This will tell you how long your system should run to provide the correct amount of irrigation.
Different grasses require different amounts of water.
The same holds true for shrubs, trees and flowers. That's why it is a good idea to group plants with similar watering requirements together. Doing this helps conserve water. Check roses, trees, shrubs, perennials and annuals for insects and pests. Colorado State University Cooperative Extension agents and Master Gardeners can help you identify, diagnose and treat lawn and garden pests.