^ I have never had a plant cease flowering except from excessively hot or cold night temperatures (or disease) so maybe it is growing season related, though I'm not all that far north in that I usually grow into at least late Nov., but with you being further south you may be hitting excessively high night time temps. Fortunately it is very rare for it to stay too hot at night here.
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Maybe it's something else instead. Some people feel they "need" to reduce nitrogen once a high bloom state happens. I don't do that. I compost and use balanced fertilizer too and haven't had bloom abortion from it. I would never ever ever wait until a plant has low nitrogen symptoms to give it more fertilizer as the article suggests so we might say that the article is stating things that do not pan out to be true except in particular situations not clarified. One cannot logically jump from "excessive fertilizer does bad things" to "so don't give them any instead of merely not giving them an excessive amount". In a nitrogen reduced state it would not surprise me if stem and leaf growth necessary for a new node (to facilitate blooms) slowed down.
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There are all kinds of self-defeating superstitions like this in growing, then when people repeat them enough times they become urban myths. The way I would explain the picking vs new blooms is as follows:
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A plant pops out a bunch of blooms, then spends a much larger amount of energy on the resultant pods than new stem and leaf growth. This makes the grower think it's not going to grow and produce more blooms unless they are picked, but it would have anyway once those pods reached full size and more energy was available for the next nodes and blooms.
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Eventually it gets to a point where you keep getting forking and doubling of blooms then pods so each subsequent set of pods has higher pod to leaf and stem ratio. For example suppose a 48" tall plant with 700 blooms that make it to pod stage, then 4" taller with another fork, and then it has 1400 blooms to pods.Â
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It's not that the plant has *decided* not to bloom any more, it's that a plant merely 4" taller has to put a lot more energy into growing 1400 pods and finishing up the prior 700 compared to previously growing 700 pods and finishing up the prior 350, with a progressively decreasing amount of solar energy to do it in once the middle of summer has passed and winter draws nearer.
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At least this has been my experience over many years, that there is no slowdown or hesitation in new bloom production except that relative to how many new, not-yet-full-sized pods the plant is putting energy into.