How much longer should I wait to flush her?

Hyperaccumulatory nature of Cannabis sativa is shown by the accumulation of various metals (mg/kg) (d.m.) in industrial areas (Malik et al. 2010)

Concentration of metal (mg/kg) Root Shoot
Lead 29 mg/kg 30 mg/kg
Copper 29 mg/kg 18.2 mg/kg
Zinc 27 mg/kg 43.9 kg/kg
Nickel 13.6 kg/mg 11.3 mg/kg
Cobalt 24.7 mg/kg 14.8 mg/kg
Chromium 29.7 mg/kg 14.5 mg/kg

Dump all the shit you want on your plants. You want to gamble on the amounts of metals you may or may not be consuming knock yourself out it's your health. The post is more about showing some extra water isn't gonna do shit or clean anything. All the weights they show in the link are in the plant material, smoke it if you like. I think watching what you're feeding a plant makes more sense than hoping the plants have transpired enough or had a magic flush that has removed anything that might've accumulated to toxic levels.

Well damn this topic really does have some sticklers, but that's the Internet for ya, I'm just repeating what I've read and interpreted, the site I mentioned earlier says they did an informal side by side, several plants, one flushed 2 weeks before chop, 1 several days and 1 no flush, only difference was flushed smoked a bit better otherwise it was the same, and all a flush is, is plain ph water instead of the normal nutrients in the very last week or 2 before cutting it down, seems like some people might be thinking of flush like pump water through to get rid of all nutes like if ya accidentally hot potatoed a redbull into the pot. But bottom line it makes no difference for quality other than harshness, and that's more on curing so the topic is really pointless cuz growing the plant up to that point is the focus of the matter truly, speaking of, I chopped 1 today

Randomestguy said:

Well damn this topic really does have some sticklers, but that's the Internet for ya, I'm just repeating what I've read and interpreted, the site I mentioned earlier says they did an informal side by side, several plants, one flushed 2 weeks before chop, 1 several days and 1 no flush, only difference was flushed smoked a bit better otherwise it was the same, and all a flush is, is plain ph water instead of the normal nutrients in the very last week or 2 before cutting it down, seems like some people might be thinking of flush like pump water through to get rid of all nutes like if ya accidentally hot potatoed a redbull into the pot. But bottom line it makes no difference for quality other than harshness, and that's more on curing so the topic is really pointless cuz growing the plant up to that point is the focus of the matter truly, speaking of, I chopped 1 today

Click to expand...

What it is and isnt is what the respected members here have defined it as.


Your opinion is one weve all dismissed many times.

A flush is 3 times the volume of the pot as defined here.


It has no bearing on harshness or cure.

Your better than this internet rubbish so dont spout it

I think this is my favorite thread so far this week

xtsho said:

There are people with college degrees in the agriculture field, botany, horticulture, etc... that say flushing does nothing. It's those without any formal education or have never grown any plant other than cannabis that push the flushing nonsense. Them and nutrient/marketing companies trying to sell as many bottles of whatever they market for "Flushing".

But I don't really care if someone else wants to starve their plants.

Click to expand...

I dated a girl who went to college for horticulture and all that Jazz m and she helped me grow weed a few times. Learned a lot from her in that time about plants and all the stoner myths about weed that don’t mean shit.

This pic was yesterday at lights on. Notice yellow tips on the plant in the back and some spots here and there. Seemed like nuet burn from what I’ve learned and read and researched. Flushed each plant with a gallon of distilled water.


This picture is from right now a couple hours before lights go off. Notice the tips aren’t as yellow and they look happier? My PH was off. It should be around 6.5 and I was phing at 5.8-6.0 so it looks like I’ve got a bit of mag def on two and some nuet burn on all three. No big deal, just readjust my watering and cut nuets back down to half strength and once a week. They looked fine the day before I fed full strength. Let your plants talk to you and don't get too high to remember when you fed them last lol. This grow has taken some turns and gone off course from what I wanted to do but plants seem healthy enough.

Never flush at all. Doing it in soil is the worse thing you can do.

maxamus1 said:

Well hell, let me throw my two cents into the mix. While i do believe in flushing but not in the way other believe in it. Sense you r in soil its a lil different then hydro in terms of flushin, if you are doing organics then i agree flushing is useless as the plant is just a big storage unit and collects the nutrients to use at a later date. So if you over feed it, it has an over abundance of nutrients that will be left after harvest no matter how much you flush.

Click to expand...

althor said:

Oh yeah, this seems to be one of the worst subjects on this site and let me tell you, the anti-flush people act like you killed one of their children if you mention flush. It is insane how crazy they get over someone else growing their plants the way they want to grow them. If you want to flush, by all means flush, most of the reasons they give to not flush don't make sense anyway. It might not help your plant, but in no way does it hurt your plant either. In most cases you will be cutting it down within about a week of flushing anyway.

Click to expand...

Randomestguy said:

Well damn this topic really does have some sticklers, but that's the Internet for ya, I'm just repeating what I've read and interpreted, the site I mentioned earlier says they did an informal side by side, several plants, one flushed 2 weeks before chop, 1 several days and 1 no flush, only difference was flushed smoked a bit better otherwise it was the same, and all a flush is, is plain ph water instead of the normal nutrients in the very last week or 2 before cutting it down, seems like some people might be thinking of flush like pump water through to get rid of all nutes like if ya accidentally hot potatoed a redbull into the pot. But bottom line it makes no difference for quality other than harshness, and that's more on curing so the topic is really pointless cuz growing the plant up to that point is the focus of the matter truly, speaking of, I chopped 1 today

Click to expand...

Confirmation bias is being used by one of you.....The mind, in a side by side test of anything. WILL find a difference, even if one does not exist...... The testers were given a task. "Is there a difference?'
Their mind found one!

Read up on that one.

Here, read this.

You can not "flush" nutrients from plants = SCIENCE!
If you don't feed them for some weeks (fade) The plant is STILL moving the nutrient in the plant TO the buds !

As far as any home done side by side? Your brain finds a difference in things when "told" to. Even when the things being tested, are exactly the SAME = SCIENCE !!

It's called, Confirmation Bias

Once you get an idea in your head, you seek out only the evidence that supports your thought.

In the end, flushing is subject to so very many variables that there can be no general consensus made on it one way or the other. Through simple habit, I don't so much "flush" as I do just stop giving nutrients the week of harvest. I always harvest on a Saturday, so I stop all nutrients or additives of any kind on Sunday.

It's probably more of a "feel good" thing than anything else. I've had a few smokes from folks that swear flushing for weeks is the holy grail of all marijuana and I've smoked some from guys that say it's all bullshit.

I've never really seen any difference.

It's all subjective to our own thoughts, really. In the end, most any difference between the two has far more to do with what was done for the several months the grow took than it does what was done in the last 10 days or so.

That people have to argue to the point they'd come to blows were they in the same room over this topic is proof positive on just how far around the bend civilization has gone at this point.

Thanks to TacoMac for the above!


I got asked about this in a PM by a member after seeing the disaster another thread became. He asked where to find books and papers on "flushing" and said he might try the "fade".

Here's my answer to him......I felt it needs to be seen,,,,,,again!

Your looking for post grad work. You would do better to search papers......The thing is, NOTHING in agriculture gets 'flushed" and that leads to little to no research in the area. You see, the thing is, the whole "idea" of "flushing is nonsense! Plants don't work that way! They do not take up nutrients or salts as most of you think of them! They do not "store" them in the sense you think of them! Not only that, but the nutritional "stores" in a plant are not in buds or budding or flowers! NO amount of "flushing" will "exchange" plant "stored" nutrition back "out" of the plant! Scientifically impossible by the way most of you guys understand......Ok, that's my word on "flushing". (No one listens to this in threads if they don't want to hear it or accept it.)

Now then, you propose the "FADE TO FINISH" method. Great idea in theory but, and this IS a BIG BUT! Remember when I said above that "the nutritional "stores" in a plant are not in buds or budding or flowers!" ? This shoots that theory in the ass right away. You see the main amount of stored nutrition is in either the roots and the rest in leaves and some in small amounts in transit in the phloam (the sap that actually moves the nutrients around the plant)......

Now when you "starve a plant" it will draw from it's self by actually breaking down the needed parts of it's self to do an "emergency" attempt to reproduce! (This can happen in certain plants even in veg! A kind of last ditch effort to continue the species.)

With that in mind you take the fact that the plant is not "moving" nutrients "out" of buds, but into them to speed growth and as fast as it can - "reproduce". This single minded process the plant now puts it's self on causes the plant to stress it's self. This self induced stress can, in many cases if done long enough, lead the plant to go bisexual, and produce "banana's" in a last ditch effort to reproduce and "carry on the line" and produce seeds...

Basically put, In reality you are moving nutrients that you're "attempting" to get rid of,,right to where your trying to remove them from! You are also stressing the plant in the way for "Herming" to actually happen easier!

I and many others that have tried to convey this actual plant science, are called everything you can think of and those 'impossible of understanding these facts", fight so hard against us that many of us have simply chosen to avoid the issue or don't fight to hard.

Anyway, there you are in as short and sweet and as simple/understandable as I can...

The thing is you have to understand Botany and Horticulture (and there are LOTS of subsections to those that are involved here) to truly put together the pieces of the puzzle to get your head wrapped around the idea that flushing and the "fade" don't work for what they are intended or alleged to actually do!

There you go Mods, nice, polite and to the point. (Sorry about the other thread Sunni)

There you go, Now have at it!
I'm stepping back to watch the circus.

Read this too!

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

Dr. Who said:

Confirmation bias is being used by one of you.....The mind, in a side by side test of anything. WILL find a difference, even if one does not exist...... The testers were given a task. "Is there a difference?'
Their mind found one!

Read up on that one.

Here, read this.

You can not "flush" nutrients from plants = SCIENCE!
If you don't feed them for some weeks (fade) The plant is STILL moving the nutrient in the plant TO the buds !

As far as any home done side by side? Your brain finds a difference in things when "told" to. Even when the things being tested, are exactly the SAME = SCIENCE !!

It's called, Confirmation Bias

Once you get an idea in your head, you seek out only the evidence that supports your thought.

In the end, flushing is subject to so very many variables that there can be no general consensus made on it one way or the other. Through simple habit, I don't so much "flush" as I do just stop giving nutrients the week of harvest. I always harvest on a Saturday, so I stop all nutrients or additives of any kind on Sunday.

It's probably more of a "feel good" thing than anything else. I've had a few smokes from folks that swear flushing for weeks is the holy grail of all marijuana and I've smoked some from guys that say it's all bullshit.

I've never really seen any difference.

It's all subjective to our own thoughts, really. In the end, most any difference between the two has far more to do with what was done for the several months the grow took than it does what was done in the last 10 days or so.

That people have to argue to the point they'd come to blows were they in the same room over this topic is proof positive on just how far around the bend civilization has gone at this point.

Thanks to TacoMac for the above!


I got asked about this in a PM by a member after seeing the disaster another thread became. He asked where to find books and papers on "flushing" and said he might try the "fade".

Here's my answer to him......I felt it needs to be seen,,,,,,again!

Your looking for post grad work. You would do better to search papers......The thing is, NOTHING in agriculture gets 'flushed" and that leads to little to no research in the area. You see, the thing is, the whole "idea" of "flushing is nonsense! Plants don't work that way! They do not take up nutrients or salts as most of you think of them! They do not "store" them in the sense you think of them! Not only that, but the nutritional "stores" in a plant are not in buds or budding or flowers! NO amount of "flushing" will "exchange" plant "stored" nutrition back "out" of the plant! Scientifically impossible by the way most of you guys understand......Ok, that's my word on "flushing". (No one listens to this in threads if they don't want to hear it or accept it.)

Now then, you propose the "FADE TO FINISH" method. Great idea in theory but, and this IS a BIG BUT! Remember when I said above that "the nutritional "stores" in a plant are not in buds or budding or flowers!" ? This shoots that theory in the ass right away. You see the main amount of stored nutrition is in either the roots and the rest in leaves and some in small amounts in transit in the phloam (the sap that actually moves the nutrients around the plant)......

Now when you "starve a plant" it will draw from it's self by actually breaking down the needed parts of it's self to do an "emergency" attempt to reproduce! (This can happen in certain plants even in veg! A kind of last ditch effort to continue the species.)

With that in mind you take the fact that the plant is not "moving" nutrients "out" of buds, but into them to speed growth and as fast as it can - "reproduce". This single minded process the plant now puts it's self on causes the plant to stress it's self. This self induced stress can, in many cases if done long enough, lead the plant to go bisexual, and produce "banana's" in a last ditch effort to reproduce and "carry on the line" and produce seeds...

Basically put, In reality you are moving nutrients that you're "attempting" to get rid of,,right to where your trying to remove them from! You are also stressing the plant in the way for "Herming" to actually happen easier!

I and many others that have tried to convey this actual plant science, are called everything you can think of and those 'impossible of understanding these facts", fight so hard against us that many of us have simply chosen to avoid the issue or don't fight to hard.

Anyway, there you are in as short and sweet and as simple/understandable as I can...

The thing is you have to understand Botany and Horticulture (and there are LOTS of subsections to those that are involved here) to truly put together the pieces of the puzzle to get your head wrapped around the idea that flushing and the "fade" don't work for what they are intended or alleged to actually do!

There you go Mods, nice, polite and to the point. (Sorry about the other thread Sunni)

There you go, Now have at it!
I'm stepping back to watch the circus.

Read this too!

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

Click to expand...

Well i thank you for being polite but as i have noticed that name calling and such comes from both sides. Now im no botanists or horticulturalest but i have done organic and hydro and i personally feel that flushing helps with smoke and taste. Now you can be mad about that or just except thats my personal choice and let me/us be.

Now i know that you're gonna say to stop pushing nonsense and that its not proven an such but trying to force your beliefes on others is no better and that is directed at all parties. This is a plant and we can grow and consume it however we wish no one has to agree with how we do it.

Peace and respect
Maxamus1

maxamus1 said:

Well i thank you for being polite but as i have noticed that name calling and such comes from both sides. Now im no botanists or horticulturalest but i have done organic and hydro and i personally feel that flushing helps with smoke and taste. Now you can be mad about that or just except thats my personal choice and let me/us be.

Now i know that you're gonna say to stop pushing nonsense and that its not proven an such but trying to force your beliefes on others is no better and that is directed at all parties. This is a plant and we can grow and consume it however we wish no one has to agree with how we do it.

Peace and respect
Maxamus1

Click to expand...

He's not forcing his beliefs on anyone.
You're bitter because your "opinion" is not backed up by real science.

Get over it.
If you weren't so stubborn, you might actually learn something.

Chunky Stool said:

He's not forcing his beliefs on anyone.
You're bitter because your "opinion" is not backed up by real science.

Get over it.
If you weren't so stubborn, you might actually learn something.

Click to expand...

Lol ur funny

Prace and respect
Maxamus1

maxamus1 said:

Lol ur funny

Prace and respect
Maxamus1

Click to expand...

Lol ur proven wrong

Do whatever you want bro.
Voo doo dolls, chicken bones, mountain dew flushes, whatever floats your boat.
But don't confuse the noobs with flush bullshit that has zero science to back it up.
That's just mean.

maxamus1 said:

Well i thank you for being polite but as i have noticed that name calling and such comes from both sides. Now im no botanists or horticulturalest but i have done organic and hydro and i personally feel that flushing helps with smoke and taste. Now you can be mad about that or just except thats my personal choice and let me/us be.

Now i know that you're gonna say to stop pushing nonsense and that its not proven an such but trying to force your beliefes on others is no better and that is directed at all parties. This is a plant and we can grow and consume it however we wish no one has to agree with how we do it.

Peace and respect
Maxamus1

Click to expand...

This is a forum of members, in your tent your opinion rules, here we follow a slightly different format.

You saying were wrong and were saying go find another group with which to spout that newbie flush info on.

We like our attitude, if you dont form ya own site

Randomestguy said:

Well damn this topic really does have some sticklers, but that's the Internet for ya, I'm just repeating what I've read and interpreted, the site I mentioned earlier says they did an informal side by side, several plants, one flushed 2 weeks before chop, 1 several days and 1 no flush, only difference was flushed smoked a bit better otherwise it was the same, and all a flush is, is plain ph water instead of the normal nutrients in the very last week or 2 before cutting it down, seems like some people might be thinking of flush like pump water through to get rid of all nutes like if ya accidentally hot potatoed a redbull into the pot. But bottom line it makes no difference for quality other than harshness, and that's more on curing so the topic is really pointless cuz growing the plant up to that point is the focus of the matter truly, speaking of, I chopped 1 today

Click to expand...

How many grows have you done??

Chunky Stool said:

Lol ur proven wrong

Do whatever you want bro.
Voo doo dolls, chicken bones, mountain dew flushes, whatever floats your boat.
But don't confuse the noobs with flush bullshit that has zero science to back it up.
That's just mean.

Click to expand...

First and last time im going to say this to you stool so please listen closely and read entirely. You can believe your scientology all you wish. You can call me dumb all you wish but you keep showing your lack of intelligence by trying to insult me. Sory to tell you but science is not the end all be all, humans were growing crops way before your so called science was around and yet we are still here to argue about flushing. Ponder that while you try to conjure a whity response but be forwarnd this is the last comment i will send your way regarding this subject.

Peace and respect
Maxamus1

Kingrow1 said:

This is a forum of members, in your tent your opinion rules, here we follow a slightly different format.

You saying were wrong and were saying go find another group with which to spout that newbie flush info on.

We like our attitude, if you dont form ya own site

Click to expand...

Didnt know you owen this site

maxamus1 said:

First and last time im going to say this to you stool so please listen closely and read entirely. You can believe your scientology all you wish. You can call me dumb all you wish but you keep showing your lack of intelligence by trying to insult me. Sory to tell you but science is not the end all be all, humans were growing crops way before your so called science was around and yet we are still here to argue about flushing. Ponder that while you try to conjure a whity response but be forwarnd this is the last comment i will send your way regarding this subject.

Peace and respect
Maxamus1

Click to expand...

Hmm... you declare victory then say you will not debate the matter further.
In a real debate, that would be a surrender.

Clearly someone is lacking intelligence, but it's not me.


Hugs & Kisses

Kingrow1 said:

This is a forum of members, in your tent your opinion rules, here we follow a slightly different format.

You saying were wrong and were saying go find another group with which to spout that newbie flush info on.

We like our attitude, if you dont form ya own site

Click to expand...

I think you hurt his feelings.

Noobs are sooo sensitive...

maxamus1 said:

Didnt know you owen this site

Click to expand...

I dont own but am a part of it.

Weve already discussed waters effect on media as a solvent on other threads, cation exchange and flushing, ionic charge and loads of other relevant stuff that your simply omitting for your 'OWN' opinion.

Let me know when your at a point you care about actual science and quit with the magic fixes

Kingrow1 said:

I dont own but am a part of it.

Weve already discussed waters effect on media as a solvent on other threads, cation exchange and flushing, ionic charge and loads of other relevant stuff that your simply omitting for your 'OWN' opinion.

Let me know when your at a point you care about actual science and quit with the magic fixes

Click to expand...

So how can you tell someone to start another site cause they believe differently then you. You can call me noob and act better then others but at the end of the day i am no better then u and you are no better then I. You and other on this subject act that only your opinion count because you are the gods of growing. With that said i truly wish you and the others the best with your grows and continued learning on said subject.

Peace and respect
Maxamus1

maxamus1 said:

So how can you tell someone to start another site cause they believe differently then you. You can call me noob and act better then others but at the end of the day i am no better then u and you are no better then I. You and other on this subject act that only your opinion count because you are the gods of growing. With that said i truly wish you and the others the best with your grows and continued learning on said subject.

Peace and respect
Maxamus1

Click to expand...

The mods restrict me from any harmfull comments but i dont think that more than just making a point between the lines.

I do however mention topics relevant to flushing and invite you to delve futher.

Dont dismiss products that flush properly and do the job water cant.

What your not doing is adding anything but an opinion, weigh that against all ive offered....

Not rocket science dude but ya thick skin helps as this is the internet