...because you don't know what you are doing bro, you think you do but you don't and i mean no offense, it's just a fact proven by what you've written here.
first, the method you are attempting is called rhodalization and basically all that means is you let a flowering plant continue flowering way past it's 'done' date in the hopes that it will hermie, ...not very reliable at the best of times and flat impossible with some strains.
plus, you are attempting this on a plant that you've just harvested so despite the fact that you've left some vegetation, right now that plant's best shot is at revegging, not feminizing.
...i know you've said you don't want to use CS and frankly i wouldn't recommend it at this time myself but here is a thread on feminizing using CS that discusses the feminization process in some detail, enough so you'll learn why what you are attempting won't work.
My first colloidal silver generator (photos)
...like i said bro, i mean no offense and i only jump in to save you from several wasted weeks that will end in failure, ...instead focus your attention on revegging that plant if you like it so you'll have a gene pool to work with, then take clones and force one to turn and use it's pollen to pollinate it's clone sister.
peace, bozo
