To understand why trees and fence posts are purple, you need to understand what made it necessary in the first place. It is the law in many states that unless you post signs to the contrary, anyone on your land is not trespassing. The problem became that people would rip the signs down so they could not be arrested for trespassing, usually it means hunters who want to poach off of your land. That’s what prompted the idea of painting fence posts and trees.
The color purple was chosen because it is the easiest color for the color blind to distinguish. So, now you know that whenever you see a purple fence post or a tree, you need to stay out.
Purple shows well in the outdoors. In fact, it’s one…
