Yeah, it's got to have some height to it. All my plants are in full LST training, but they have yet to reach around the pot itself, let alone be able to touch down in another pot. However, I'm seeing a real explosion in growth now that it's warmed up and I've stopped using fertilizer altogether. I'm seeing secondary node growth on those areas lower down on the main branch that have now been exposed.
So, I'm thinking about how it would work, and theoretically it could practically double the plant -- LST main plant, then take either the top as it's met the main branch again, or a side branch that's noding out, and force that to root, then LST it. Make sense? Each rootball will be able to nourish the entire plant, or at least that which grows down the line.
Yep, they may be hillbillies, but they sure know their farming!
When the apocalypse comes, they'll be able to take care of themselves.