I moved into a new house (built 1979) this past fall and I would like to convert some of the grass area to a vegetable garden. I don't know how the previous owners took care of their lawn, but is there any chance of of unsafe chemicals still hanging around in the soil?
I'm thinking of just normal lawn care products. Do they dissipate over time? If so, how long?
From the current state of the grass, it does not appear they did anything special to it.