first off, I suspect a 7-month old plant that is only 20" tall, has problems, ... I have gradually increased pot sizes over the years, starting with 6" clay pots, and now using #5 pots (commonly referred to as 5-gal pots) ... whatever size I used, the rootball pretty much filled the pot at harvest time ... there is a product called SUPERTHRIVE that you will see mentioned in these forums extensively ... you will see claims that it changes seeds to female status, triple sizes buds, and probably cures cancer, too ... none is true ... the one thing that it DOES do, is promote rootgrowth, which is essential to healthy plants ... next crop, start with the basics, I suspect you have poor soil pH, and probably not enough light, to have such a small plant after 7 months ... good luck :smokin:
the image reaper Reviewed by the image reaper on . How large should the root-ball be? Here is my problem-plant. After trying everything to help her, someone suggested to transplant her into another pot with better soil. Below are pictures taken a few hour after her transplant. She hasn't went into shock yet (she looks the same or maybe even a little better since the transplant). But when I transplanted her, her rootball was as big as my fist. For a girl, I have a good size fist, but I would think that her root ball should have been bigger than that. She is 7 months old and has Rating: 5