this idea has been thrown around a bit among some guys i know and myself the past 15 years or so
can you veg a single plant in a field?, provide a adjustable expanding support frame ect?
blue dream would be my choice to try out..take a clone, veg it for 2 years in a greenhouse thats 100x100x50ft tall. use supp lighting ect the whole way through, then once it hit the third year take off the supp in mid june...would be interesting
i have a feeling eventually it would start to go sideways much faster than it got taller
give it up for the ganja farmer