Wild rabbits will flatten a vegetable patch and strip young plants overnight, so keeping them out is a real garden problem. The humane approaches fall into a few camps. Solar ultrasonic devices emit a sound and sometimes a flash meant to make the area unpleasant, and they cover broad multi-pest use. Scent-based liquid repellents make plants taste and smell bad to rabbits and deer, while peppermint oil products use a smell rabbits tend to avoid. None of these are a perfect fence, and rabbits adapt, so rotating methods works better than relying on one. The important part for a pet household is safety. If you have a dog, cat, or pet rabbit with access to the garden, you must check that any repellent is safe to apply where they walk, graze, or sniff. Some products are not meant for areas pets access, and the ASPCA maintains guidance on which substances are toxic to pets. Read the label, match the method to your garden and your pets, and combine deterrents with physical barriers for the best result.

Sources