...the best weed I've ever had (and I do mean ever) was from an Edmonton Wizard who only grew four plants per year, but they averaged 9' tall, and had colas the size of footballs.

He was doing indoor, with outdoor-veg-type-timings, so that after a full year, the yield was insane... (and incredible density). Not sure how many lights he had on 'em, but it was lots.

Trees. Mmmmmmmmm.