You’re not crazy! I am going to read through this post so I can absorb it.<<<
Maybe I should warn you, that my family never willingly enters into one of my brainstorms.
Scott rebelled against something that I wanted him to do, a couple weeks ago, got that strange look on his face and he was biting his tongue to stay silent, so I said it for him....
“Another one of your 15 minute projects that only took 2 days to build”..........how many times we heard that comment from Bill.
Many times he was grumbling “15 minute project and I will be all day on it”, as he went out the door to get started.
I do think you could do it with the cement blocks, turn every second or third one sidewise and it will leave a hole in the side, LOL, for a minute, I thought of a problem, what would support the next layer?
You don;t want the holes in a row, stagger them, so the plants get more sunlight. that should work, LOL or does in my head.
If you could find the oak pallets, used in shipping, they would make a nice bin, so what if they rot out, they are free materials and work for lots of things.