Cut the grass to the same height all year. In summer's heat, the grass grows more slowly and you can cut every seven to ten days. Aeration Aeration once a year in spring or fall provides air to grass roots, and space for the roots to spread out. This improves you lawn's hardiness and permits water to reach deeply into the soil, thus encouraging deeper root growth. Weeding by Cheap and Effective Methods Infrequent long watering periods thicken the grass, increasing its health.
Healthy grass discourages weed growth.
When weeds are discovered in the lawn, dig them up by the roots, getting the complete root, if possible. Weeding is easier if it follows lawn watering or a heavy rain, as the soil is looser and the roots are more easily pulled out completely. Dig a weed when you see it. Don't allow it to go to seed, which starts a new weed in your lawn. Quackgrass or other grassy weeds should be dug out, removing the entire root.