If you don't want to fence and net, then you have to spray something on the plants that make rabbits dislike them. And you reapply it after every rain or watering, which quickly becomes a pain.
Ideally you want to cause no harm to the rabbits or your dog, right? Try this:
Four hot peppers like habenero, diced (It's okay to leave seeds in)
Four cigarettes, filters broken off, then broken into pieces (or some pipe tobacco)
Two eggs, stirred enough to break the yolks
One teaspoon baby oil or dish soap
One teaspoon vinegar, any kind
Add water to produce one gallon of liquid and cover tightly. Find a sunny spot for your gallon container to sit, and shake it well several times a day.
After a minimum of two days, strain the liquid and use a refillable spray bottle to mist your plants. This keeps many types of insects, plus rabbits and deer, away, but will cause no harm if an animal samples it.