I grew a clone that was planted July 1st, started flowering early August, and finished early October...
It was in a 3 gal smartpot and i got >2oz dry of my best bud this season off her...imma do the same thing x10 next season using a drip irrigation system and go for 1.5 lbs off clones that i take from a mother i will eventually flower....this will cut 3 months out of veg time for me except for the one small mother ...im trying to make life easy on myself lol
I LSTd the mother but didn't like the wild growth and popcorn buds (my dog also liked playing with branches -____-)..the clone was not trained at all and had even bud growth and was alot easier to manage/keep out of reach of my dog....i also hated tying up falling branches as the buds packed on weight...but i yielded 20 oz this season and the 2oz off my clone was far easier to grow...
so it's possible but you need to plan a short veg time (or get rootbound) and multiply your plants if you want a large yield