Flush before flowering?

How long before I start to flower should I flush on each watering and not add any nutes?

flower after 3 weeks of veg
add nutes during flower
flush 10-20 days before harvest

i meant to ask SHOULD i flush my plants with plain water before I put them into flowering? not at the end of flowering...and 3 weeks? don't you think that is a little too soon?

kjc0314 said:

i meant to ask SHOULD i flush my plants with plain water before I put them into flowering? not at the end of flowering...and 3 weeks? don't you think that is a little too soon?

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Hey ya kjc,

That is a matter of preference and debate. I do not and have not flushed before switching my nutrients from vegging to flowering. I have a friend who flushes for a week before he switches to 12/12. We are trading clones and so far neither of us has noticed any difference in the end product. He still flushes though and I don't.