The most important lawn treatments typically include fertilization, weed control, and regular mowing. Fertilization provides essential nutrients to promote healthy grass growth and development. Weed control helps prevent the spread of unwanted weeds that can compete with the grass for nutrients and space.

At its core, "how often" is an interrogative phrase used to inquire about the frequency or regularity of an action or event. It allows speakers to specify a number of actions or events within a specific time frame, providing valuable insights into habits, routines, and patterns.