I only used peppers to keep my own doofy dog from ripping the lattice off from the bottom of my porch - trying to get at the rabbits hiding under it.

To deter the rabbits from my garden, a fake snake worked fine. Plus, I planted things they prefer to my veggies. They really don't like veggies as much as johnny jump ups it turns out. and the johnnys come back if you let em re-seed.

Oddly, the rabbits live under the shed right next to the garden, haven't lost a single veggie.