flushing during flower?

Dr. Who

Well-Known Member
Good lord the fucking never ending BS flush crap again.

#1: don't over feed and you don't need to "flush"

#2: Using multiple times the pot size to "flush" away over feeding (your stupid mistake - more is NOT better) can do more damage then good. Lack of O2 causing an anaerobic condition, pH too low, too long causing defs.

#3: Molasses use does very little for the plant. It does feed the micro heard, if you have any left from frying their little ass's with the overfeeding. Can do some actual work in organic soil.

#4: The final "flush" for "taste and burn" is the biggest and most pervasive MYTH there is!!!! If you take your time and dry and cure properly - Your product is perfect!
There is NO, NADA, ZILCH, NONE, ZERO science to back up any kind of final flush that "removes" ANYTHING nutrient wise that would make any flavor/burn difference!

READ THIS
https://www.rollitup.org/t/the-truth-about-flushing.409622/

Don't even come back and say "Well ***** wrote a book and he says too!" Their wrong.....writing a book makes you a writer - not and expert in the field....Science rules here - NOT old school hippie "logic"!
 

The_Herban_Legend

Well-Known Member
Good lord the fucking never ending BS flush crap again.

#1: don't over feed and you don't need to "flush"

#2: Using multiple times the pot size to "flush" away over feeding (your stupid mistake - more is NOT better) can do more damage then good. Lack of O2 causing an anaerobic condition, pH too low, too long causing defs.

#3: Molasses use does very little for the plant. It does feed the micro heard, if you have any left from frying their little ass's with the overfeeding.

#4: The final "flush" for "taste and burn" is the biggest and most pervasive MYTH there is!!!! If you take your time and dry and cure properly - Your product is perfect!
There is NO, NADA, ZILCH, NONE, ZERO science to back up any kind of final flush that "removes" ANYTHING nutrient wise that would make any flavor/burn difference!

READ THIS
https://www.rollitup.org/t/the-truth-about-flushing.409622/

Don't even come back and say "Well ***** wrote a book and he says too!" Their wrong.....writing a book makes you a writer - not and expert in the field....Science rules here - NOT old school hippie "logic"!
I am new to growing so don't take my questions as being sarcastic or an ass.

I understand that a proper cure will make for the best bud but does flushing work for taste if you plan on smoking much of it post dry and pre-cure?

Does it make a difference dependent upon medium?
 

Dr. Who

Well-Known Member
I am new to growing so don't take my questions as being sarcastic or an ass.

I understand that a proper cure will make for the best bud but does flushing work for taste if you plan on smoking much of it post dry and pre-cure?

Does it make a difference dependent upon medium?
No prob Herb - Thanks for the clarification...

No. Sometimes I wish it did work.....But it's basically a waste of time. While plants do have an "exchange" at the root level. None of the "out going" will do what people want it to. No nutrients "leave" the plant. once the plant takes it up - it's there and not coming back out with dumping plain water in through the pot in stupid amounts! All your doing is removing needed nutrition from the soil at what is one of the plants most critical times - the bulking phase. Those last 2 weeks are when the plant packs on the majority of it's final buds size. Your in effect, only reducing yield and quality!

No per media or soil vs hydro either.....
 

The_Herban_Legend

Well-Known Member
No prob Herb - Thanks for the clarification...

No. Sometimes I wish it did work.....But it's basically a waste of time. While plants do have an "exchange" at the root level. None of the "out going" will do what people want it to. No nutrients "leave" the plant. once the plant takes it up - it's there and not coming back out with dumping plain water in through the pot in stupid amounts! All your doing is removing needed nutrition from the soil at what is one of the plants most critical times - the bulking phase. Those last 2 weeks are when the plant packs on the majority of it's final buds size. Your in effect, only reducing yield and quality!

No per media or soil vs hydro either.....
Sounds good. I ask because I am near harvest (55 days). I will feed for the last week or two.
 

Dr. Who

Well-Known Member
Sounds good. I ask because I am near harvest (55 days). I will feed for the last week or two.
Dry as slow as you can - that helps. Dry is when the stem cracks and not bends. The cure is where the real magic is. Take your time with this. 2 weeks is my shortest cure and I haven't done it that short in years. Put the dry product into jars and seal. everyday open them for a few seconds and uncover - "burping" - reseal and do this everyday for 2 weeks and let it sit in the jars another week alone.
Now smoke that!
The cure will actually help raise your THC quality and give a more effective/longer lasting buzz..
 

The_Herban_Legend

Well-Known Member
Dry as slow as you can - that helps. Dry is when the stem cracks and not bends. The cure is where the real magic is. Take your time with this. 2 weeks is my shortest cure and I haven't done it that short in years. Put the dry product into jars and seal. everyday open them for a few seconds and uncover - "burping" - reseal and do this everyday for 2 weeks and let it sit in the jars another week alone.
Now smoke that!
The cure will actually help raise your THC quality and give a more effective/longer lasting buzz..
I think this has been my problem. I threw them in the jars after 3 days of drying. The stems were not snapping, only bending. I am going to let this harvest dry until they actually crack. Maybe 5-8 days?

It was garbage.
 

Dr. Who

Well-Known Member
I think this has been my problem. I threw them in the jars after 3 days of drying. The stems were not snapping, only bending. I am going to let this harvest dry until they actually crack. Maybe 5-8 days?

It was garbage.
I run my dries slow in a separate area with higher RH to go "around" 2 weeks......I feel it does a better job of breaking down the chlorophyll and gets a nice start on the "sugars" to begin breakdown........
 

Yekke

Well-Known Member
#4: The final "flush" for "taste and burn" is the biggest and most pervasive MYTH there is!!!! If you take your time and dry and cure properly - Your product is perfect!
There is NO, NADA, ZILCH, NONE, ZERO science to back up any kind of final flush that "removes" ANYTHING nutrient wise that would make any flavor/burn difference!
There is quite some science to back it up.
By lowering your mediums EC by flushing (which removes excess salts, not nutrients in an organic complex or tightly bound nutrients) the plants gets easier access to water (H2O) and thus can allocate less resources to maintain turgur pressure and more to building sugars and such.
Also, removing excess salts helps getting the plant into senescence both by directly depriving N and other nutrients and by stimulating the microfauna.

With a well aerated medium the risk of going anaerobic is minimal.
 

Dr. Who

Well-Known Member
There is quite some science to back it up.
By lowering your mediums EC by flushing (which removes excess salts, not nutrients in an organic complex or tightly bound nutrients) the plants gets easier access to water (H2O) and thus can allocate less resources to maintain turgur pressure and more to building sugars and such.
Also, removing excess salts helps getting the plant into senescence both by directly depriving N and other nutrients and by stimulating the microfauna.

With a well aerated medium the risk of going anaerobic is minimal.
If you are saying to "flush for finish" taste and burn ----
BZZZT WRONG!!

That's the nutrient in the soil and you even say so by saying mediums...(Nice cut and paste)....The plant will not "flush" out nutrients. Excess or otherwise....FACT!

Dolomite - the most used liming agent tightens soils and promotes anaerobic conditions when overused/watered.
Overfeeding hardens soils and reduces air transfer to the roots when watering. Extended overly wet conditions further reduce air getting to the roots and that includes reduction of watering by waiting for the media to dry out...CAN get anaerobic!

Extended wet conditions keep the soil pH artificially low too long - defs!

A regular leeching of Coco IS needed to keep salt build up down! The only "flushing in my book" worth doing.

If you have a salt build up in soil - simply water it out with straight pH'ed water or with a tad of Ca/Mg as that's one of the first to suffer from lockout problems caused by what ever you did wrong.
 

Yekke

Well-Known Member
If you are saying to "flush for finish" taste and burn ----
BZZZT WRONG!!

That's the nutrient in the soil and you even say so by saying mediums...(Nice cut and paste)....The plant will not "flush" out nutrients. Excess or otherwise....FACT!

Dolomite - the most used liming agent tightens soils and promotes anaerobic conditions when overused/watered.
Overfeeding hardens soils and reduces air transfer to the roots when watering. Extended overly wet conditions further reduce air getting to the roots and that includes reduction of watering by waiting for the media to dry out...CAN get anaerobic!

Extended wet conditions keep the soil pH artificially low too long - defs!

A regular leeching of Coco IS needed to keep salt build up down! The only "flushing in my book" worth doing.

If you have a salt build up in soil - simply water it out with straight pH'ed water or with a tad of Ca/Mg as that's one of the first to suffer from lockout problems caused by what ever you did wrong.
I didn't say it will improve the taste or the burn. That's you saying that.
Flushing before the harvest will give you a bit heavier buds and a few more differences.

You can't flush a plant, you flush the medium. Soil can hold a lot of insoluble nutrients which will not be changing much by a flush. Coco barely hold anything by K. Other soilless mediums can hold nothing.
By flushing the medium you lower the EC in the root zone. There are effects to that, like promoting senescence and stimulating water absorption.

Of course a soil can go anaerobic (other mediums are much harder to get anaerobic even if theoretically possible) but cannabis loves a lot of air in the root zone. With a proper soil mix for cannabis you should have enough aeration to perform a 5xpot volume flush without much adverse effects.
If you use a heavy soil mix, which should be avoided, you can get anaerobic conditions which are overall not good for the grow both it terms of acidification of the soil, ammonification decrease, root pathogens and so on.

If you get a salt build up in soil move to coco - it will serve you much better...
Soil shouldn't require many salt inputs. I believe in using a lot of composts and manures as it drives your fertilizer need much down and produce a superior feed to your plants at a very low cost.
When working with a high volume of biologically active soil you really don't need to pH your water, or feed the plant much. With minimal mineral feed there is absolutely no need to flush at any stage.
In my big (30-180L) soil pots I never ever flush.

-Yekke

PS
I don't know what cut and paste you'r talking about. Soil is one kind of medium you could flush. I used to word medium because the information was valid to all mediums.
 

Gquebed

Well-Known Member
No prob Herb - Thanks for the clarification...

No. Sometimes I wish it did work.....But it's basically a waste of time. While plants do have an "exchange" at the root level. None of the "out going" will do what people want it to. No nutrients "leave" the plant. once the plant takes it up - it's there and not coming back out with dumping plain water in through the pot in stupid amounts! All your doing is removing needed nutrition from the soil at what is one of the plants most critical times - the bulking phase. Those last 2 weeks are when the plant packs on the majority of it's final buds size. Your in effect, only reducing yield and quality!

No per media or soil vs hydro either.....

All true.

But you're forgetting something.

Like people and cars and so on...plants have a circulatory system, the veins/pipes which delivers the nutrients. The nutrients left in those pipes when you chop are partially absorbed while drying/curing, but they not processed/transformed by the plant, as it is dead. So the nutrients dry out into salts in those pipes/veins. You can even see the salts dried in the trunks, if you keep em around long enough.

So why wouldn't you flush that shit out before harvesting? It's not like this needs to be done over weeks. The last watering before harvest or maybe even two.... just use water only.

I don't see how this is not obvious.... such doesn't deprive the plant of valuable nutes and it certainly does improve the quality of the smoke. So why wouldn't ya????
 

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