Ive had clones grow 10 feet tall, and 5 feet wide. Sun, nutes, loose soil, and more sun. I like to veg indoors for a couple months before I put them outdoors, and I do put them out as early as possible. No later than mothers day. Strain obviously plays a role in final weight, but ive only come across 1 strain I couldnt get to yeild outdoors, and that was Larry OG. Tried to get it to produce for 3 years, but could only get a QP per plant. Ive pulled over 3 pounds off Banana OG clones, I think I got 1 1/2 pounds off a DOG clone last year. I attribute my success to strains, over abundance of sun, and quality nutes. I didnt start using "natural" nutes until this year. I have always used Heavy 16 nutes. Im hoping for a 5 pound plant next year. Let me say that weight aint shit if the weed isnt top notch. I would rather have a pound of dank than 5 pounds of mids.