Root Balls

[FullKeel]

Any tricks to determime the size of a root bal? If one were planning to grow 12 plants and yield 1lb min. From each. How big would root ball have to get during veg and what size lot would accomodate? Also when transplanted before flower what size pot should they go into to finish?
Thanks

 

[FullKeel]

**what size pot not "lot" ...crazy touchscreen
.qhat the hell was wrong with buttons??!

 

[bayarea925]

What medium? Never mind your other thread says.