Good idea if you have rock solid ground that is hard to dig up. If you don't cover the holes you can use them for herbs & annuals. also lined with weed barrier cloth & used rebar in several places for stability. It makes maintenence super easy.
could do this toward road and in corner at end of deck.would look very nice with table and chairs would seat a lot for dinner. Just steps from the patio is a serene sitting area with native Florida plants.
How to Space a Privacy Fence Using Arborvitae Pyramidalis