I am looking for suggestions on what to plant for a Privacy screen. I live in n/e FL. I want something that is low Maintenance and hardie. I want to plant it along a wire fence line of a pasture that will have cows in it. I want them to be thick but no taller then 4 to 8 feet (6 feet would be perfect.). I would also like to be able clean out from under them about 6 inchs to a foot so it will be easy to weed eat under them. I am just looking to block the few is all i really want to do. But I dont want them real tall and I Really don't want a privacy fence. Any suggestions Please as I have never done one of these before.