Maybe get some food that they like and they may leave your ornamental plants alone.

I actually built several patches of large plants as hideouts for the bunnies to raise

their families. I also put up birdfeeders nearby. I put down on the ground, black oil sunflower seeds and a variety of bird seeds and I do believe the bunnies eat

it. I also have lots of alfalfa hay around from my horses. You can buy alfalfa pellets at any feed store for horses and the bunnies will eat that also.

My point is, my rabbits almost never bother my ornamental plants. They have too many other goodies to bother with.