Hey all,
I am 14 days into flower - one 3rd Dimension sativa and one Dairy Queen sativa hybrid...I have a fairly small grow box and have had some really good success with a couple of methods SO FAR...as this is my first grow with this box, it still remains to be seen how much stretch will actually happen - but so far, so good.
First, I spent the veg period on the clones FIMing and LSTing in a circular pattern...like a spiral staircase...it's made both have low internodal spacing and loads of bud sites. once they got about 14"+ main stem LENGTH (I bent it over at 5", and then again at 12" so its __|-- kind of thing)
Starting about a month into veg, I began lightly pruning fan leaves - a few at first, and then worked my way up all the way to 12/12 taking a good handful every time. This allows light to fully penetrate to all budsites within the spirals.
About a week or two before 12/12 (and after I fully matured the plants using these techniques) I stopped LSTing the plants, and placed a wide-gauge rope net over a frame. Once into 12/12 and the light right against the screen, I let it stretch for about 4 days without any pruning, or LSTing (I also timed that between waters/nutes so it was kinda dry and in the midst of a feeding cycle).
After four days, I again removed a bunch of fan leaves to get light to the other sites - and here I am. 14 days in and they have stretched appx. 3 1/2" +. I am sure there is still more to go, but as they get taller, I can LST to the mesh screen and weave fan leaves in it, as well as weaving the colas up through...this is a gentle and relatively easy way to LST in early flower.
Both have been sexed female (showed really early due to full maturation prior to 12/12). Most likely, in a week or so I will stop LSTing again and fully let the plant do its things. Right now, the new nodes coming off the tops are already showing 3/4" gaps and are shortening each day...so it looks like stretch is slowing down-ish and it's starting to bud up.
Right now, on the Dairy Queen, I have 13+ viable budsites showing and the plant is about 16" around and 2' tall. I will update with pictures once it starts to bud up.
Hope this helps...I think the best method to remember is minimal interferences (FIMs and Pruning), gradual introductions (of lights, nutes, etc.), and a gentle touch (LSTing and a "support screen"). Rather than doing one thing really intensely to curb stretch, I suggest using numerous and various methods, minimally and incrementally. They might not yield pounds, but they look like oncer-sized plants!
Happy growing,
Smacks