Moving our discussion here. Started it in the study hall because it was about increasing CO, but now it's more about our grows.
For me shape is more of consideration than size. I don't want it too deep. Most SOGs I've seen use 1 gal pots packed tight. Large container with multiple plants wouldn't need to be much deeper than that. If you let plants get too tall it's no longer a SOG, it's a tree farm!
More I thought about Canna and Nis's raised beds I recalled that their discussion started with something more like a drain table. I think I would pack my 2 gal smart pots tightly in large rectangular trays. (i've got over 30 of them, gotta use them for something.) Tight pack would be similar to large pot needed for kit soil. And roots would probably grow from one pot to another just as if it were one big pot. Shape fits my lighting better and fills space better than big pot. Another option I considered is using bins that I'm using to store and cook my soil. It's still couple months away so lot's of time to think about it, but I'm leaning toward tray and 2 gal softies.
But if I used a 15 gal pot I think I could fit 7, 1 in center and 6 around it. Nice hexagon pattern. I love hexagons.
Hey! That's a cool pattern too. And if the plants could move around like that they'd all get good light. The way I'm talking now you'd think I was the one who had the second brownie!
You're a bad influence on me, Sue. Thank you again for that!