You do have to be careful with what fertilizer you use but if you go to your local hardware store home repair store they should be able to tell you which ones to look at. I used Revive as well as weed control fertilizer but watered it in real good then just watched my boxer/lab Buster when he would go out. He eats everything too also I would wipe down his feet when he came in so he wouldn't lick anything harmful.
good luck
good luck