I think you should start from your own interests. If you think these two majors are nothing special, I suggest you study veterinary medicine. If you can become a better veterinarian and know something about medicine, you must be prepared not to be afraid of being dirty or tired, because you have to deal with animals. Gardening is cleaner. Learning both majors well is good, and it is not a bad thing for veterinarians. As long as there are many varieties, there are not many veterinarians. Come on!