A plant can grow as big as however much room you give for the roots to grow. In your case, a 13 gallon pot doesn't provide much room for root growth at all so your plants will not get too big. However, that's just my opinion. Everybody has their own definition of big. I don't consider anything under 6 feet tall (or 6 feet wide), big.
Outdoor growing and indoor growing are two different beasts.
thats awesome, I'm looking to move somewhere i can grow , sativas are where your monsters come from Cannabiogen -Colombia Mangobiche 16- 24 weeks just for flowering alone , also Indica for me 4-6 weeks veg & 8 weeks flowering is only 12-14 weeks 16 tops for a total grow where as to something like the Mangobiche would be as high as 24-32 thats 6-8 months for one grow, You're actually growing Trees at this point lol not plants
where would you suggest a brother to look to go to start growing like that w/ out having to worry about Johnny Law?
Lol a legal state that has longer warmer summers then I do. I'm very limited on what I can grow outdoors since I have a 4 month window. I literally snows 8 months of the yr here. So 9 to 10 week flowering times are my absolute max.
I'd definitely love to have a greenhouse or two or three
I noticed a few other outdoor growers using 200 gallon pots also
You are correct. In my opinion, it's quite a waste of season to do outdoor in small measly pots. Plants will root bound and stress severely once harvest time comes around. Nice huge plant you've got there though.
who knows how big they will get. You can LST them to get them lower