We’ve never used Preen Weed Preventer but Costco seem to carry it every year so it must be quite popular.
They claim to stop weeds before they start and block them for up to 3 months.
To use, remove existing weeds, then sprinkle product evenly onto the soil and water it in.
Each container covers 3000 square feet.
Preen Weed Preventer is available in an 18.75 lb container and is priced at $22.99.
Item number 153928.
Inventory and pricing at your store will vary and are subject to change at any time.