Does the weed killer package not say on it?
wher have you used it on a lawn area? if so then i'd say at least 6months, and when you mow the lawn if that's the area, then bin what you've collected rather then leaving to lie on the lawn
Ill just keep that area sectioned off x
Sorry, I presumed the weed killed had done it's work and the area had been cleared of weeds now, yes, you'd definitely want to get rid of any plants that you'd coated with it.
The weed killer definitely didn't do its job
I recommend Roundup. You can get it in a big pumpy thing - worth it if you have a large area.
May give it ago, the weeds are taking up a 3rd of my garden, and I dont have the time (or patience) to dig or pull them up x