Short answer: Fencing.
When a furry bunny is a pet it's cute; when it invades your space and destroys plants, it's vermin. I used to raise rabbits to sell; feral domestic rabbits are a whole different thing. Uncontrolled, rabbits multiply, cause damage, attract preditors and spread disease.
(I sound like Little Miss Sunshine, don't I?
You can wait for natural control such as owls, cats, dogs, foxes, etc. to fix the problem. Sorry to say that in the meantime proper fencing is the only solution I would offer.
Here are a couple of places where folks have discussed...or were disgusted by...rabbits.
The thread "An Attack in the Dark"
in Sempervivum forum
I ranted about feral domestic rabbits a while back in my blog,
It's the one titled: "Armadillo on ice" Posted on Aug 8, 2014 10:11 AM
That was a year ago and the rabbit problem is still with us here in our neighborhood.