1 application prevents weeds for up to 3 months. Product can be used around flowers, vegetables, trees, and shrubs. Applicator cap features an inner fan powered by 2 AAA batteries (included). To operate, flip open the top, switch on the fan, and point the cap toward the ground. Gravity feeds the Preen granules into the fan, and distributes them evenly which allows for more precise application. Provides 11% more coverage. Covers 1000 sq ft. Batteries will last for a minimum of 8 bottles. 6.25 lb.