Question
I was prepping my soil prior to sod installation and added Preen weed preventer into the topsoil. I plan to lay sod now. Two questions: 1) did I do the wrong thing by adding Preen to the topsoil prior to sodding? 2) Should I wait a couple weeks before planting the sod now?
Thanks.
Cali

Answer
Hi Cali,

The sod should be fine, but there was no need to put down the preen. Preen is a garden product that is meant to suppress new weed growth in gardens and is not meant for lawn areas. On top of that, sod is thick enough to naturally suppress weeds pretty well, so chemical preventatives are unnecessary for the first year or two. The downside to what you did is that you put a chemical out into the environment when it was completely unnecessary to do so. That's the type of thing we should really avoid.

Since the Preen will last several months, waiting a few weeks will have no real impact. Good luck. I think you should be okay.