It's not that simple. Some plants are far too stretchy because of their genetics, many plants would not possibly fit in your specifications. But I can tell you this, you can make that space generate an ounce of good weed.


Throw a few lowryders in there. Order some AK-47 and throw one good female in there and give her what she needs. Something like that, you obviously need to look for smaller breeds. (AK is great, as it is more of a sativa, yet it can also be used in stealth grows because of it's size if maintained properly)