When concentrated urine collects in a single area, lawn damage happens. It's a lot like fertilizer burn. All dogs that squat to urinate, including females, puppies, elderly dogs, small dogs and some adult males, can burn grass when they urinate in one concentrated area.

Is human urine good for grass?

Urine, as it happens, contains a number of beneficial nutrients commonly found in commercial fertilizer. "It has a fair amount of nitrogen, a little bit of phosphorus and potassium, which are all needed for a healthy lawn," says Owen Duckworth, associate professor of biogeochemistry at North Carolina State University.

Is Pee toxic to grass?

Nitrogen is an essential component of healthy soil, but high concentrations of it can cause patches of grass to die and turn yellow or brown. Urine is naturally rich in nitrogen, and high concentrations of nitrogen can cause grass burns.