Fertilization is crucial for more than just healthy-looking turf. Strengthening the root structure also aids in durability and water retention. Many don’t realize that fertilization also offers the added benefit of weed control. By making your grass healthy and thick, fertilizer helps prevent the growth of unwanted plants. Most weed seeds won’t penetrate the soil underneath a thick, healthy lawn; and those that do won’t be likely to receive the sunlight and water they need to germinate. By feeding the “good,” meaning the grass on your lawn, you effectively starve the “bad” (weeds).