"how tall could it grow? It would be a beast!"

Sounds good, but, not happening.

The tallest I've seen was some 20' hemp in Nebraska, followed by 18' dank in Hawaii.
The problem is senescence.
Weed is an annual.

Momma plants can be kept for quite a while, but they all, eventually, flower and die.
I have kept one under 24 hour light and it still went alternate, meaning it's ready to flower, after several months.
So, it's fun to think about, but mother nature runs this game.
There is more going on that just photoperiodicity.

I agree with Random999.
Huge trees are a pain in the butt.
 But with our limits of 3 mature gals per patient, we are forced to grow big here.

Aloha,
Weezard
Weezard Reviewed by Weezard on . wacky questions I want to ask about MJ! Hey people. I want to ask if anyone has tried to grow a massive plant before. I mean...what if you had the ability to veg the plant for years on end. Imagine if you had money to throw around and you bought yourself a sports stadium and planted one plant in the middle. You hung a 1kW light from the rafters and dropped it right down to the baby plant and just kept inching up as it grew. Could you eventually grow to the height of the stadium? I guess? I seen some videos of people Rating: 5