The best liquid lawn fertilizer to use for an overall healthy lawn is a "weed and feed" fertilizer. This type of liquid fertilizer contains a herbicide, which feeds the healthy lawn while destroying the weeds that are in the same area.
About this Author
Nicoline Keavy has been writing for over 20 years. After Nicoline received her MBA at University of Washington, she has enjoyed a career of managing several online non profit organizations. Nicoline Keavy has been published in over 3000 publications over the last 20 years.