well I dont know what the world record would be? but you can turn one into a actual tree if hydroponics were to be used in a place that you can grow all 12 months?
I could tell ya what my record is to beet? But I doubt any won would believe me
I have fun with it tho and at the same time it is every day work to keep up with it, in more ways than one would think?
I live 25 miles west of Nashville tn off I-40 in a small town of Kingston springs, if ya ever out this way feel free to stop in and plug up for a nite, and of course try one
as far as how its done? well .....it can be done with any tomato plant
the dirt I use is pure river silt from a river in the area, that when I am able to find somebody digging some and a way to get it here. this dirt is on it 5th year and is worn down purdy good.
how its done......
to really get one rocking and rollin its best to (with the climate I have) to start one inside under grow lights and get it as tall as possible, then 24 hr before planting, drown the plant so the stem will now be very flexible, till up the planting area a good 4 feet around the spot, till in some 6 month granular plant food as well then dig a trench as deep as possible throw in more granular plant food and cover that with 2" of dirt than take a razor blade and trim all the limbs off but the head of the plant and lay the root ball in one end of the trench and all the stem in the rest of trench and curve the head of the plant up (however if the plant had not been drowned for 24 hr the stem may brake when making it curve up) and drive a stake next to it and put a zip tie around it to hold it there. the more stem that is in the ground the bigger the plant can get, for the stem will grow roots the more root that their is to feed the plant the more plant it will be. the tricky part.... when one gets large is the amount of water the plant must get, it really needs to be on a separate timer and dripper, so the times can be changed and the amount of time it is dripping can be changed, I had one a few years back that required a 24 hr drip to keep up with it. what ever it was I did this year was lucky, I did not start it in side, it was small when I put it in, we had a 500 to 1000 year flood back in may I think it was? and it about drowned and died, I have only had 2 rains in the past 3 months and it is sooooooo dry and hot, yesterday was 99 degrees and it hit 13 feet this morn
I also do use miracle grow by the box I might add.