geez i hate when i get asked to explain things as i’m terrible at it! haha..
firstly i always try to follow this graph, if i know i’m growing a strain that will be longer than 8 weeks i’ll stretch out sections of the flowering time by a few days here and there..
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as you see though as everything gets lower at the end she still needs at good bit of “K” along with everything else.. and just the simple fact the marijuana is an annual plant and knows death is coming.
you might notice your watering less also towards the end..
flowering cycle is all about her getting ready to produce seeds, so needs change and they don’t need as much intense light or high levels of food just the correct food and amount.. like in summer, very hot sunny days plants sucking up as much nitrogen as possible, growing huge than fall time, sun not so hot, spectrum changes, food changes, plant ain’t growing as much..
geez i know this is a mess and i’m not going back over it to fix, probably made it more confusing than answering your question.
i’m baked and need to smoke another..
ask me anything maybe make it more pin pointed hahaha