I can definitely understand your desire for a well-maintained patch of green, but if your dog is on a diet that’s working for her, don’t change it! As my vet friend Dr. Robert Proietto explained to me, the discoloration in your grass is caused by the level of nitrogen in your dog’s pee. The more protein in pets’ diets, the more nitrogen they release when they, well ... release. Female dogs can cause more damage because they tend to do their business all in one spot, whereas male dogs will “spread the love,” marking a little here and a little there. Restricting the amount of protein your dog eats isn’t a good idea, and a lot of those “home remedies” for “neutralizing” a dog’s urine will not work the miracles they claim.
Luckily, since your pup is typically going to the bathroom in just one place, you have a few (vet-recommended) options for saving your grass. The first — and easiest — solution is to thoroughly flush the grass with water every time she pees, as you mentioned. To make things a little easier on yourself, try streamlining the process: Have a dedicated squeeze bottle primed and ready to go, so you don’t have to run to the sink every time she squats. (You could even make it fun and keep a Super Soaker by the back door.)
The second and more time-consuming option is to train your dog to pee in a set area of the yard where you can mitigate the damage. Plant a patch of a hardy type of grass like fescue or perennial ryegrasses for her. Teaching an adult dog to do her business in one specific spot will be time-consuming, but in the long run, it’ll save you those annoying midnight jaunts across the yard.
And, remember, you can hide almost anything with a well-placed garden gnome.