If you need a “privacy screen” somewhere in your yard you really should consider a Belgian Apple Fence.
About ten years we planted the fence pictured below at my parent’s home. It quite effectively screens the back yard from the lane that travels behind their home.
The fence is relatively easy to plant and grow although it does take more maintenance than your standard white picket fence.
For the first couple of years it is important to continuously monitor and trim the apple trees in order to keep them growing along the “fence” rather than bushing out and across the walkway or area that it is screening.
The best part of these fences is that not only do they provide a nice privacy screen-fence they can also provide food!
They do take a couple of years to grow in but once they have grown in, they are very beautiful way to add a degree of privacy to your yard.