Actually, the reason that cats use gardens as toilets is this: A cat wants to conceal its droppings, if at all possible. In Nature, that is easy. The cat can find literally hundreds of places where he can hide his donation under some leaves, twigs, and other handy material. A cinch!

But what the hell is he supposed to do in a suburban subdivision, or worse than that, in a town or city??? Everything in sight is either paved over or it's a lawn with short grass on it. Like a carpet.

The only thing generally available for reasonable digging purposes is then either a garden...or an area underneath a deck or crawl space...

And THAT is why they bury their shit in gardens! The garden is often the only damned place left that is remotely feasible for the purpose.

The cats probably don't even like it too much themselves after a while, because they have to all go in a very limited area...and that gets messy fast. Cats dislike such messes.

That people can't see this is typical...and, boy, is it stupid.

Once again, it is people who are responsible for the very situation that they bitch and moan about. By reducing the natural environment to tiny little pockets of rigidly controlled yardage, they have created another dumb situation that doesn't work, either for them or for animals.

People are idiots.

- LH