You can find many homes that have bushes/hedges along their property line, Most of my neighbors have them and it's fine to do so. I am in Marion County not sure if that makes a difference but I have seen the same thing in Sumter CountyI do believe there is a limit as to the height but I have seen some up to 4 ft. tall We have gardenia bushes right behind out lanai that are 5 ft tall and that gives is a lot of privacy beside their beauty and scent