I think the short answer is plant a lot of it.

I put out a row about 10 feet long, and once Fluffy
found it, the poor little plants didn't stand a chance.
She determined that not only did the plants need to be
grazed flush with the ground, but it was also a great
place for rolling and naps.

I think once the plants establish a robust root system,
they can take a bit more abuse, but they first have to
survive long enough. Various screens or cages might help.