I would never stop feeding a blooming plant. I don't understand this modern belief that we need to starve our plants at the end so as to have better smoke. There is nothing further from the truth and an organic grow is the proof of this fallacy. In a regular organic grow, the minerals are built into the soil, and the microbes are there to process them... and none of this goes away, right up to the day of the harvest. Why should ANY grow work any differently?
I will faithfully feed these plants, right up to the end, within reason of course. I mean, if it is 3 days till chop and it is feeding time, that would be silly, because of course there are still microbes and some nutrients running around in there still... but I am certainly not going to on purpose try to "flush" them at the end.