Sorry for the confusion about flushing.........
It seems that this is the only website the advocates NOT flushing. Jorge Cervantes flushes, Ed Rosenthal flushes, Green House Seed Co flushes. Everyone with incredible experience with growing FLUSHES.
It gets out the salt buildup in the rootzone before flipping them and it gets rid of the nutrients stored in the leaves and roots before harvesting.
WHEN - as soon as the trichs are 75% milky and the hairs are turning red on the top 30% of the plant.
I flush for 2 -3 weeks and starve the shit out of my plants. I want them to suck the nutrients from the leaves until the leaves turn anywheres from red to yellow.
I also use tapwater with a ph of 8 to lockout any nutrients that they could absorb from the soil.
I use 3 gallon buckets, so I run 9 gallons of un-ph'ed tapwater through them. I do this every 4-5 days for 2 weeks then use ice-cold water to shock the roots and make the plant force out every last trichome to protect itself. I leave it in the dark for the last 7 days.
If using organic soil, flush the morning the day before harvest to ensure just water uptake with no nutrients. The plant will absorb nutrients from the soil if able too. I dont allow that at all. Heres my results:
Incredible smell and taste.
Incredible crystal content - 20% more.
Incredible smoothness within a week of curing.
It brings out the true flavor of your buds with no interferance.
Some of these pics are pre-flush, just before the week of darkness, and after the flush/week of dark, at harvest.
Pic 1 - this is when I start my flush.
Pic 2 - after the flush and dark.
Pic 3 - before the flush
Pic 4 - look at those crystals from a finished, tiny, bottom-most nugget!!!!!!!!! Should have seen the top!!! LOVE the ice cold water and darkness TRICK!!!!
Pic 5 - Tastes like it should.
Pic 6 - During a flush. The leaves are turning yellow. About 2 weeks left.
Pic 7 - Trichs should look like this before the flushing begins.
Pic 8 - Who says the buds dont grow without stuffing them with nurients? BS. I always get monster buds.
Pic 9 - Proof is in the finished product. If you dont flush, The Purps turns black and wont burn in a joint. It tastes like shit and burns hot.
Pic 10 - Heres my Purple Kush hybrid. The biggest yielding kush strain Ive ever seen to date. Week 1 of flushing. The leaves turn color for lack of nutrients but the buds look nicer than ever.