Jorge Cervantes has said that one gallon of pot size per month is a safe guideline
I think Jorge knows a little more about this then is givin credit for.He has years under his belt and a few books. You dont just write a book of what you think you have to do your homework
I'm a bit different on the subject....I only grow autos and an occassional photo....the largest container I've used is 1 gal.....but usually use a 4" pot....I know thats much smaller than recommended but it works for me. Yes, they dry out pretty quick, requiring daily care but I do grow some auto monsters..and have 6 different strains right now in 4" pots, very healthy, growing some nice buds.....I must add my 20 yrs growing bonzai is helpful......I don't recommend small pots unless you have the time to care for'em. My yeilds are small but when you grow for yourself, yeild is not important...........
I would push those two dudes out of the way, crawl inside that bitch, and never come out!!!OK, I found an example of a Humboldt sized plant. This is why smaller pots would never work here...
Not mine, but that looks like a 2 - 3 gallon container.
OK, I found an example of a Humboldt sized plant. This is why smaller pots would never work here...