I came across this straw bale project on Pinterest the other day and it made me think again about the possibilities of some raised beds here in my garden. I don’t need anything this large, but I am faced with large areas that are totally infiltrated by tree roots to the extent that little else can grow there. Straw bales seem to last for a long time outdoors here in near-desert Los Angeles, but wetter areas would probably find themselves replacing at least some of the bales every other year or so.
Something this large would also take a LOT of soil to fill and would probably be out of my budget, but smaller area might work.
It does go to show, though, that you can garden nearly anywhere given enough energy.