Originally Posted by Demeter

In grass.
I had contaminated topsoil, and a huge infestation of noxious weeds. If I had sprayed it indiscriminately, it would have killed my lawn.

Landscaping (rocks, woodchips, etc.) is much easier to keep up with, as you don't have to worry about the weed killer contacting something it shouldn't.

I'll look up that Ortho stuff, I need truckloads of it.