I have always had problems with deer eating my rosebushes and hydrangeas. I have tried covering them with netting, spraying them with store-bought spray, and planting them close to my house. None of these ideas worked well. I did some searching and decided to try my own concoction which has worked very well. I mix water with crushed garlic, enough so that it is very pungent. If you buy the already crushed garlic in a container, you can simply pour the oil/juices from the container into the water so that you won't have to strain the mixture. Place this in a spray bottle and spray your plants once a week or more if there are rainy days. You can also add some liquid soap but not too much as it coats the leaves of the plants, preventing them from absorbing water and nutrients. I don't see why this won't work to deter rabbits as well. Good luck!