No watering of landscape or gardens for a minimum of 45 days. Fluridone provides excellent control of most vascular plants.Common nuisance plants like duckweed, Eurasian watermilfoil and hydrilla can be selectively controlled while more desirable native plant species are left to thrive. Fluridone has been "THE go to" product for many years in the maintenance of ponds all over the country. Sonar fluridone in the 16oz. Size is perfect for the pond of 1/2 acre-3/4 acre in size. Product is 8oz, not the 1 gallon as shown in the picture. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Weed & Pest Control\Weed Control\Herbicides & Fungicides". The seller is "lakesrxmark" and is located in this country: US. This item can be shipped to United States.