The answer to 'frequency of lawn' is that most lawns should be mowed once a week during the growing season, which is typically spring through fall. Mowing your lawn on a regular schedule helps maintain a healthy, lush appearance by preventing the grass from getting too long and unruly. The ideal mowing height is 3-4 inches, and you should never remove more than one-third of the blade length at a time.
In addition to mowing, your lawn may also need other maintenance tasks like watering, fertilizing, and aerating depending on your climate and grass type. It's important to pay attention to the health and growth of your lawn and adjust your mowing and care schedule accordingly.