I have had 2 grows all the way through in a rubbermaid container, you can't use regular pots though, what I did was got these 2 rubbermaid squared white things, drilled holes for drainage at bottom and holes on the rim and put screws in the holes for something to tie to when I tie the plant down. You have to tie the plants down in the container like that and it works great last grow pulled some 3 1/2 oz. with just Floro's and 2 plants, and currently doing the same now. It can be done and it dont take mucjh room, it just in the corner of my shed under the work bench