New method of growing outdoors?

This morning I was walking the dog and noticed something unusual but cool. Down here there are palm trees everywhere and they fall over from the storms, well I noticed someone used a fallen over palm tree as a planting pot and I thought how cool it’s basically same as coco and they even put eggshells in it. I bet if you threw some dirt in the base with all the organisms in the palm it would be the ideal setup.