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.
Fruit trees are a great asset to any garden or landscape. They provide shade, flowers, a yearly harvest, and a great talking point. But they can also be very vulnerable to disease. Learn more about common fruit tree diseases in this article.