 Now, this is not that it's going to 100% get rid of the weeds, but it's going to prevent a lot of them. And if you've done good weed care on it, then you won't have a lot of the nasty perennials like field bindweed that are going to pop up through that yellow lawn. And I know this because during the recession, I mowed foreclosed lawns that received a zero water and quite often didn't even have good care before the foreclosure.