Idk if you can help or if you even know what I’m talking about, but sometime awhile ago, somewhere, I saw an article about these gardens where they’d stack chopped wood into pyramids, fill them with dirt, and then plant in between the logs, and it was supposed to help save space. Have you seen anything like that before?
It sounds like you might be talking about pyramid garden towers?
These look like a pretty handy way to grow smaller edible plants. Things like herbs, leafy greens, or strawberries might do very well in these, and you’d definitely need less garden area to have one. They might go nicely in a greenhouse too.
:^) 