I recommend feeding veg nutes until the stretch is over, then switch to bloom nutes. Switching to bloom nutes too early will restrict your plants size. Very soon after switching to bloom nutes your plant will stop stretching and go into bloom even if she has a lot of stretch left in her. I have sometimes purposly switched to bloom early so my plant doesn't outgrow my tent. I am not organic, but hydro, so may be a different deal with organic, but I think the theory is still the same. Just my 2 pennys worth.