Per the product label: "Optimum weed control performance will be obtained when an application is followed by sprinkler irrigation or rainfall within a few hours. A single rainfall or sprinkler irrigation of 0.5 inch or more is required to activate Ferti-Lome A-Vert Plus Lawn Food 18-0-12".
Yes, Fertilome A-Vert Plus Lawn Food can be used on established fescue grass.
People and pets can return to areas treated with Ferti-Lome A-Vert Plus Lawn Food 18-0-12 once the product has dried completely after having been watered in.
One bag of Ferti-Lome A-Vert Plus Lawn Food 18-0-12 covers up to 2,000 sq. ft.