I am having a problem with my neighbors shining the deer in my 10 acre farm field until they become nocturnal. To try and fix this problem, I am going to plant the edge of the road with pines. However, these will take many years to grow big and thick. So, I am planning on planting sunflowers on the inside of these. I need to make about a 15 foot wide strip that is about a quarter mile long. Does anyone have any ideas about how much sunflowers cost? Or does anyone have any other ideas about what else I can plant to create a natural fence?

Thanks for the help.

Brandon