Okay so i have the map, foliage, textures and everything but i have it laid out for a long range only in one direction. When looking in that direction fps drop in huge amounts which is what i expected. I was wondering how i could make it so it only renders details in a certain range so people don’t get the huge fps drops?
It helps
-when you place a mountain/hill between those areas
-when you use the foilage tool, you should be abel to choose the cull distance in the settings 
Okay so im using the culling now but how exactly doe sit work? I set the start cull distance to 1 and end to 50 and it makes the foliage disappear. I have tried many other combinations and cant seem to get it to work right
That is basically what culling does. I think what you are actually looking for is Level of Detail (LODs).
You can also look at world/level streaming… although the above optimizations would be best.