Does Flushing work? Is Flushing plants a myth?
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- čas přidán 17. 06. 2020
- www.rxgreentechnologies.com/r...
www.rxgreentechnologies.com/
An interview with scientists from RXGreen Technologies to discuss their recent flushing experiment to find out if flushing cannabis plants really works.
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You do awesome work for us Shane, you’re definitely appreciated
On my first attempt at growing I did not know of flushing as I was new. To this day, it is still the best batch I've done to date. I yielded 116 grams per plant. The smoke was smooth and flavor profile was incredible.
@@stopblaminggunsblamethedem4964 it says right there that did not flushed but hey your username kinda matches the question lmao
@@freezeframepleaseyour spelling says lots about you too , freezeframe
Arguing in a chat? Says a lot 😅😮
Smoke some weeds and chill. Long live Trump!
I am a 73 year-old lifelong gardener, new to growing cannabis. I've learned that in the gardening world there is an abundance of practices and beliefs that simply are not worth one's efforts. Fortunately, with a little effort, a gardener is able to access many science-based sources of information . My research, combined with my own informal field trials, have led me to the conclusion that successful home vegetable gardening is quite simple: basically, no-dig and the addition of compost to my gardens at the end of each growing season. Over the years, I believe this approach has saved me considerable effort, time and money.
While doing my research on how to grow, harvest and process cannabis, I realized that there is a dearth of science-based information. This is probably due to the fact that growing cannabis has been illegal and thus the availability of the plant is too limited to make extensive research viable. Things are changing and this is a good thing.
I'm looking forward to seeing more of these types of evidence-based testing. Thanks for posting.
Their techniques are horrible
@@justicebruno5249 Why do you say that? I'm interested in informed opinions. Cheers.
@@justicebruno5249 lol, what? what technique do you need to run some water through the grow medium. your critique makes no sense.
@@professor4202 man...lol you are so right... lmfao... I was watching a different video and I guess I finger fucked my phone and posted it here...killer. yeah hard to fuck up a flush. Thanks for letting me know..damn phone
@Spectacular Spectacular Thanks for the comment. This is the first time I've heard that terpene production is negatively affected by the use of non-organic fertilizers. Interesting. I googled the topic but can't seem to find any information on that topic. I'm wondering how you reached that conclusion? Cheers.
13:42 the juicy part your waiting for
ty bro
Thanks bro
Remember these are just scientists they are not life time gardeners they dont fully understand what's happening in microbiology (yet). just a few years ago it was only NPK
@@beatbox9985 NPK?
What do you recommend? Flushing? I’m first time at this only within 14 days of harvest
@@DrMidas-e8o flush for a week when u see you triclones start to turn a little amber . It will save you nutrients and you can smoke it as soon as it drys. If not you will have to leave it a fews weeks in the jars for the bad harsh taste to go away. Remember its always best to let your plants go a little more than what's stated on the seed package 9/10 weeks. Smaller plans may finish quicker than larger ones.
The cure wasnt talked about at all that's where the magic happens that's where taste and flavour comes in .
Experience is the key.
curing and flushing does the exact same thing,flushing just quickens the procces
The best tasting cannabis product I have had is live resin. It is not cured at all soon as the plant is cut straight into the freezer then made into bubble hash finally made into rosin that they call live resin. This is the best taste ever!
Perhaps more interestingly... Can the flush effect the colour/hardness of the Ash?
@@kuittiukko NO NO NO NO NO
Awesome clip. More like these please?? Thank you for continuing to do what you do. You absolutely rock!
More discussions like this please. Excellent°°!!!
This is great information, big thanks for the research and sharing it.
Great interview! I couldn't bring myself to hit the thumbs up since it's sitting at 420. I'll have to come back to it lol
This was well needed thank you ❤️
This is amazing brother I have dreamed of these conversations thank you from someone who has had to hide for half my life.
same here brother.. remember society is wrong about this not you.
These people saying it's all in the cure are out to lunch ... I grew my own I didn't use anything unnatural. Even the kief burnt black ... You can't tell me that is from wetness or something.. people are out to lunch ... Makes me sick this guy, the ego how full of yourself are you ?.. you can tell he really enjoys going oh debunked you guys. What causes the ash to burn white ... If you are going to say that's all cure that is bullcrap... Like if you are going to smoke some kief and it burns black do you really think that is moisture like Holly cow ... These people don't know what they are talking about ..
try growing your own and smoke it ... Grow it outside in the ground.... Don't use store bought fertilizers I'm sure growing in a tent and using those fertilizers is helping you somehow to flush it or something ... How much experience do you think these people have ... And they think they are smarter than everyone.
@@paddymills hell yeah agreed!!
@@paddymills wow u really got upset …this is science bro . Real proven data . I don’t flush and the ash is white sometimes and sometimes it isn’t . As far as taste I can’t really tell the difference . This is a highly debated subject that people want answers to so they did their best , I highly doubt that he did this to look good or be better than anyone else or is full of himself , if you have watched any other videos of his he just does tests and shows his results .. sorry if u don’t like it . . Do what you do .., why be upset about someone putting this out there ?
@@Carpenters_Canvas the darker the ash the higher the resin in the bud. Lesser the resin, whiter the ash
missing data on Chlorophyl levels before and after “flushing”.
Chlorophyl is a huge contributor to taste and flavours as well as harshness.
Chlorophyl will decay in the dry/curing stage anyways.
IsExtinct this is true but if you get more of it out before hand, there is even less to decay.
i read the entire research on their webpage and the 14 day flush had their leaves completely yellow compared to the 0 day that still had full green leaves. this was the only data that seemed to widely vary between all cases unlike as stated in the video that there wasn’t enough difference between the groups to warrant any significant change.
i feel there is something they are over looking here. it’s not pertaining to NPK so i understand why it wasn’t covered in the study.
Do you think chlorophyll content could affect the colour/hardness of the ash?
@@BC-nl9ph It does not.
There’s a lot of flaws n your methods
Given that their particular experiment showed no discernable difference in weight, flavour or thc levels between a 0 day flush and a 14 day flush I would be most interested to see how far that can be pushed. Would we see a difference at 18 days? 21 days? 25 days? It seems that the most interesting question out of this is how much nutrient are we wasting?
At 21 or 25 days the plant is dead.
@@gradeagrasshole3192 shouldn’t the plant start to die, self consuming & more natural? Pulling nutrients from the plant, rather than growing medium
@@5h1tfuk I mean it will be completely dead. Not transitioning or pulling nutrients, but dead. It wont get any deader, but it also wont get any flushier
@@gradeagrasshole3192 lmao I love this comment for some reason
You’re an indiot
One thing for sure about growing cannabis and that is nothing is for sure , at 67 I started to experiment with smoking and growing in 1967 and in 1975 started growing with a 400 watt metal halide warehouse light ! My favorite thing to do , and still is , going to auto wreckers and abandoned cars around old farms and looking in vans , obvious teenagers cars and I've found many old seeds some that geminated after 20 years of being under seats ! Most grower's are like hunter's or equipment operators , they always thing they are the best at it , like I've said before I've been eating for 67 years but I'm far from a chef and I learn from newbies all the time ! Experience is still the best teacher .......great channel !
touche
Ii8pjp lol (ppp program lol poop
Nothing but respect for youand your approach to growing mate. I'm 49 and have been growing weed for a while now and I am still learning something new every crop. I pity anyone who doesn't know enough too know they know nothing. 😂
Ur right man, I've grown straight monsters and then like now I had one that wouldn't veg at all, idk what it did. But turned back and it's made a lil flower on it. Hopefully it's goin to be a good one, something stressed it bad at gemination, but 3 more of the same seeds right beside in same dirt have flourished. Idk. Wierd plant but love em. I'll listen to anyone for advice. Even if I know it's wrong or I know is right, I just like hearing opinions or stories, while we cheef down on said plants lol. ✌️
I started at 45 after retiring from boatbuilder since 15. I knew then plants grew from soil just add water. I now know I knew nothing. Now,10 years later,I know the cure for most afflictions.
My plants thrive and boom instead of fizzle and pop. Everyday I still learn new things.
Great job Shane. Thanks for the discussion and sound science.
Thank you Mr.Shane..!!!
You are providing an awesome service and the info. regarding “flushing” was long overdue.
Kudos to you fine sir…!!!
The best channel on CZcams by far.... thank you shane!
What I got out of this is if you flush you can save some nutes, save money and it really won't affect your yield.
If it doesnt effect taste and so on...what happends if u feed right to harvest
Maybe that could have been a 2nd control
But waste two weeks of life.. smh 🤦🏽♂️ I rather time than money
@Tin Tizzy MY DRYING WAS A LITTLE QUICK LIKE 5 DAYS...I DIDNT FLUSH..IM CURING NOW BUT HAVE SMOKED THE BUD TO TEST...NO HARSH TASTE/SMELL...WHITE ASH I HARVESTED MILKY WHITE TRYCHES...AND THE HAY SMELL DISAPPEARED AFTER 3 DAYS OF CURING...
@@fullparranrlgames3758 They did . The said they had different control groups that flushed starting different days 0 being no flush.
This was eye opening. Thank you!
If you had to guess what's your thoughts on using different growing mediums as it pertains to these tests? Peat based, soil based, hydro etc. Is it likely or not that it could noticeably alter the outcome?
I remember this study first being published about 6 months ago, maybe more, then it completely disappeared from the company's website after some questions about finding no significant differences between treatments, but still recommending a 0 day flush based on consumer preferences in the blind taste test. If an operation runs 8 an week flower schedule and can achieve statistically identical results by using only 6 weeks worth of feeding, that's a 25% reduction in inputs for the producer. On the other hand, recommending a 0 day flush treatment ensures that producers are not buying 25% fewer inputs from a fertilizer manufacturer. I guess my curiosity is why go through the effort of conducting a study worthy of being peer reviewed and published, then conclude with a statement from qualitative data when all other statements have said there is no significant difference?
It was only a one medium test- the sample and methods were inconclusive, not just the results provided.... I know from experience- salt build up in a media will have your smoke tasting like crap and that’s if it’s even burnable...
@@TheAmericanOne crazy thing is i use tap water with 120ppm and she's smooth with no flush in soil.
@Philip J Fry I'm leaning to your method to try. Thanks for the input.
That was the finding of this study, no significant difference at the 0.05 level of certainty. That’s how the study was designed. The results are the results. No conspiracy.
@@eugeniahobbs41 I'm not a fan of conspiracy theories either, I've just had previous personal experience with this study. The dead link and my comments from this past December can be found in the link below. forum.growersnetwork.org/t/finally-controlled-study-about-flushing/28376
All these findings lead me too believe that it doesn’t matter if your clean water feed at the end or not . The one thing I wish they talked about was chlorophyll content % for the final product of each trial .... hugely overlooked and direct impact of how a joint burns . Black vs white ash . Not nutrients ... chlorophyll.
I wish they found out if flushing for 7 days aided in breaking down chlorophyll on top of a 14 day hang dry , tote cure
They did do the taste test which included the question about the ash from the 65 participants that did the test ,,,sorry I was reading your comment and listening to her talk at the same time ,,,just saying ,,🤘💪✌️
chlorophyll is made by nitrogen and magnesium
Ive always believed in flushing, but lately, have been going down the scientific rabbit hole of not doing it. Another thing I listened to was saying that, by flushing, you’re, essentially, weakening the plants immune system for the dry/cure process, making it more susceptible to mold. It’s the proper cure that breaks down the chlorophyll.
Just as healthy clones are necessary for healthy veg, to flower, to harvest, to dry/cure
Wow so glad I found your Chanel! Thanks for the great info with Scientifical backing
Thanks for all the great, scientific information! More please!
Thank you! I work in the medical Cannabis industry and have yet to meet a plant scientist or anyone but myself who even studied it in College. Lots of "facts" they were passed down, miss information, half truths and people stuck in their ways cuz this is how there mom who grew did it and she has dreads etc..
I've flushed my plants and not flushed them and no one could tell the difference. Dispensaries still bought as much of it as possible and so did my friends. Still tasted great, white Ash and smooth. The plants I have going right now are at week 9 and I have been flushing them for 5 days now, because I did a run off and the soil had 1800ppm, so there are plenty of nuts in the soil for the plant to eat up. In two days I'll do another run off and see where it's at
What was your ppm's of your last feed solution and how long after that feed was that first flush?
right on. you can save on input costs (mainly nutrients) by only watering with regular water the final two weeks. it won't affect your buds or harvest in any way.
Thanks for that informative content, Shane
I think u should do more content like this,little slow at 1st but very important content ,just glad to see u guys taking cannabis serious,thank you guys much.
does coco have "the ability to store" nutes? what about soils ability to produce them... variances immeasurable
Great post Shane. First video I have watched all the way through in a long time. With the exception all yours Shane lol. Knocked it out of the park again.
Much appreciated info... keep up the good work
As always Shane a highly informative and educational video.
This is some groundbreaking stuff. Happy I can stop wasting the last two weeks worth of nutrients and get the same crop.
does this refers to soil grow as well or only hydro? thanks
Both unless you're Organic and flushing can help prevent foliage tip burn and possible nutrient lock out like cold water can sock plant into nutrient lock out.
Thank you for sharing. A Great listen.
Great content! Enjoyed the information and I think I may stop flushing next grow and see what happens. Ty
Still means we should be flushing. To save nutrients!
thats a matter of opinion at that point I think depending on your medium
Stop fertilizing, but not flushing in the sense of flushing out the soil with excess water.
@@stochastic24 I dont agree with that because thats not flushing then...... thats just tapering off nutes which i agree with, but to cut off completely i say no
It seems like the study talks about more chlorophyll breaking down in the flushed leaves at harvest and a decrease of Nitrogen. I know it goes over the schedule, but I wonder what NPK ratio they fed to the plants in flower. I wouldn't think that it would have so much nitrogen compared to potassium even without the flush. edit: I looked it up and it is like 7-2-7.
Dear Migros, thanks dir Spur Videos, maybe y. can Help me,-
which Meanwell driver should I use to connect 10x Cree 1820 with 40 watts each at max. Drive current 1.05 A., Max. Power (W) 40 W., typical throughput 36.2 V at 550 mA, Select maximum reverse current 0.1 mA?
Thank's for the video, very informative and well presented.Good to listen to such intelligent people speak in depth on the subject.
My understanding is the flush is to do with enzymes . In the wild as the summer progresses the soil heats up and the enzymes are able to break down more of the available nutrients and thus the plant is able to make better use of the soils benefits . As the summer recedes the soils cool down and the rain and a few nutrients are all that is taken on as the enzymes die off . So when we give plants just a water feed for the last few days indoors , we are replicating the end of the plants grow cycle forcing it to use up its stored energy in the leaves .
I enjoyed the scientific end of their research and I found it to be very strong in my opinion that I have of flushing or not flushing as well. And so that being said I have always grew my plants the nature's Way!!! So good soil good organic compost good organic food and nature takes her course and that has always done for me beautifully!!! With no tip burning no fungus no deficiencies no headaches of any sort short!! I'm just old school I guess but I believe in the keep it simple stupid method!! Peace and God bless keep it growing green!!!✌️
I want to learn more about not having to add notes to my outdoor grow they always cause issues!
Great video. I hope to see more stuff like this.
Right on Liked Yall on Facebook. Thanks Shane as Always
From my experience I notice a difference. Started the flush 2 weeks before finish and carried on feed in the other plant. The plant not flushed had a harsher taste to the flushed plant, though I wonder if different feeds and chemicals may have different effects, no two setups are ever the same there's always something you can't replicate 100% in either water, temp, humidity so I think it's hard to get a true answer. I always say flush, doesn't effect the finish in my opinion and why not potentially remove something that can cause human harm. Great watch and learn though 👍
Yep same experience for me. I wish I could agree with this & it were true because it would be more convenient for me to not flush. But it just isn't, not with my nutes, they're missing something.
If you use coco coir and you flush then you will remove salts (nutrients) from the plant and simulate the process of summer to autumn. This doesn't mean that your plant is ready or ripe, you are just telling it that it should be. Using living soil you store all the nutrients from the start in the soil and only top feed 1 time every 3-4 weeks, last time 5 weeks prior to chopping and you will see that the depletion of nutrients happens naturally that way. Flushing just imitates the same thing. :)
Wha growing medium do you use?
Same
@@timpage5021 I have tried soil mixed with coco 1/3, I am really interrested in testing out organic dry amendements. Checkout Mr Canucks Grow on youtube, he got some realyl interresting method and idiot proof (almost). Im thinking of combingin this method of growith with the Blumat drip system, have you looked into this?
So, based on this, Is it the curing process (breaking down of product) that will give that white clean ash and good taste or the ripeness of the bud?
That's what I'm trying to narrow down. I think you would have to do this test backwards... Get a few samples of 'hard ash' and 'white ash' and then analyse them in a lab and try and find patterns there...
@@BC-nl9ph I am not an expert but if chlorophyll is what gives that fresh grass harsh taste then I would say that it most likely depends on the A) Ripeness, because it is a form of degrading already by the plant and in the nature you would have a depletion of nutrients in the soil and then leaves falls, autumn and the rest we know. So, it's probably a combination of both cutting the plant while it is not yet in its point of ripeness and then then curing process is mostly likely not done as it should giving a minimum of 3 months in 50-55° humidity. For us that smokes medically (I dont use tobacco for example) you notice immediately when it's not as 'it should'.
@@TheFingolito OK I think the ripeness argument could be a good way to go... The old adage "when you think it's ready, leave it a week" is kind of lost on a lot of people these days... Chop it early, dry it quick seems to be their mantra!
I am 77 years old and became familiar with cannabis 50 years ago. What I have found in Practical experience is a difference between a flushed plant and a not flush plant is the non-flush plant when smoked in a joint will have visible Sparks and the occasional audible crack. The plants that have been flushed 7 days do not have the Sparks and the cracks. I don't know why. Cannabis needs much more study it has qualities that are still uncovered. Absolutely curing cancers is one of them.
great topic guys, love the content
Thank God for sane cannabis laws that allow us to have an open discussion concerning things like this!
Also, thank You people for being intelligent, scientific and informative!
That said, now I Really don't know what to do.
🙄
I imagine in a commercial grow it would save money on nutrients to not flush but it seems to not matter at all in a personal very small grow by the study.
People mention RO water and filtered water..
How about distilled water?
Within 24 hours after flushing my Hydro buckets and refilling them with plain pH adjusted to 5.8 distilled water, the flowers Noticeably lost fragrance.
Now I don't know whether I should add a small bit of nutrient to the water for that small extra bit of terpine profile that the test subjects noticed.
When it comes to flavor, Every little bit counts!
Lots to learn!
Now would you please do a study on drying & curing correctly because we now hear That's the True Key to efficacy and flavor.
A couple of times, I've ended up with pasty tasting crystalline hay..
No One wants crystalline Hay. 😝
Marijuana, when properly grown And handled proves that effective medicine does Not have to taste terrible. Thanks again!
I'd love for a study to be done on topping and stress training, and the perception of higher yields.
Now that will be great to have studies on these subjects.
@DoWhutNow no it doesnt. The evidence is like for flushing.
@Ivan Catudan depends on strains as well. Some respond better than others. But, fundamentally I agree with you. Any changes typically that I've seen have been minimal. But, I'm only 5 years in...
stress training definitely works
@@nihilityjoey what part of flushing isn't legit to you?
As a test was done a few years back. Limited completely to a couple strains and environmental settings.
Taste was changed and the fact that no nutrition is needed for the last two weeks is legit. As far as the stress included in the process filled by darkness is a slight improvement. Almost no need to do it. But again they only used two or three strains. And the same environment.
Hardly a deep dive into it though. From the 2017 study.
Migro and Mr grow it talked to the people who did the study last year. You can find their input there as well as there site if you can remember the name if the company that sponsored the testing done.
I think I'm 2 weeks out
But scared their going to get stolen
Can you skip the flush process or atleast give them a good flush in one feeding then starve the plant for a couple days before I harvest ?
Does a 14 day day flush mean once or periodically? Received some good info, the minerals are in the plant and when you flush they are not leaving... but if they continue to grow with no food, I'm thinking the nutrients dilute in the final product.?! Good or bad I don't know.
Great information! I can say personally I prefer flowers to be faded yellow vs fresh green color! Smoother taste & white ash burn vs a black snap crackle pop smoke! I will continue to let mine fade last couple weeks.
Yessah!🤙gotta flush before harvest.everything these ladies are saying goes against my personal experiences.i do not believe their claim that there is hardly to no taste difference in 14 day flushes compared to a 0 day flush.again this goes directly against mine and others experience.
Ash color is based on sugars in the buds, NOT the nutrients used. Only a good cure will remove the sugars, it has nothing to do with flushing, just another part of the myth
Exactly right
fade doesnt have anything to do with flushing
@@ethdsththwethr7220
Exactly. Cannabis is an annual plant and dies after flowering. If your plant isn't "faded" when chop time comes, it means they're making the typical newbie mistake and likely harvesting too early.
Answer: Inconclusive one way or the other, flush or don't flush, it doesn't matter much at all statistically.
It would depend on your growing medium and method. If you grow in hydroponic methods it would make sense to use less nutrients in the end phase, A for taste (can be discussed) B for money. But, let's say you grow using living soil then there is no need to flush because the soil is having the nutrients and the microbes feeds the plant just what it needs. No need to flush. So both ways works I guess.
@@TheFingolito well if you think about it, flushing the root zone for 2 weeks with plain water will make the “plant” look for nutrients in its leaves, I mean with live soil I’m sure your working with 50 gallons or more of soil, but still, using pure water in the last two weeks will trigger the plant to look for nutrition in itself, this will increase thc,terps, and overall potency, even though your live soil has a shitload of nutrients sitting in it, pure water will signal the plant to collect its nutrients it can’t find in itself, the lower older leaves and branches.
@@TheFingolito I seen a lot of sources about it, but with live soil I don’t know if you would see much a difference as live soil has all its nutrients in the soil already , ready to be broke down by organisms.
@@blainelyster496 Hey man! Yeah I see your point and my interpretation is that this "nutrient deficiency" that we create when we flush is to simulate the natural depletion of nutrients in the living soil that we would find in the nature where you in teh beginning fo the year would have a more nitrogen rich soil because of the degradation of leaves and stumps from the previous atumn and then when you grow indoors you would use a no-till or living soil to emulate the same environment. You have to keep in mind that when we grow indoors you are simulating a 9 month grow over 3 months or less so you will always have a stressed plant and with that lesser potency. Pure water as much as I know does not "trigger" anything, its just that when your plant is out of nutrients in the soil you will start to see nutrient deficiencies which is what you call that the plant us "using up its storage" which is an intepretation but not entirely in line with what happens with the plant on nutrient level. Love this conversation and its so much to learn! :D God bless you brother and your family in this time of health and economic difficulties!
@@TheFingolito doesnt do nothing for taste at least for coco
Migro!!!! You rock bro....
Brilliant interview👍 so interesting 💚
I know someone whose bud always tastes the way botanicare cal mag smells. He flushes for 7 days. My other friend doesn’t flush, and also uses botanicare cal mag. Other friends bud does not taste like botanicare cal mag’s smell. It’s all about feeding your plants right.
but this was only done in coco hdyro the question is does media matter does the same go for soil dwc other types of systems
Does fruit in nature ONLY fall from the branch after a down pour or simply, when it is ready? Answer lys with!
Hydro plants only need 48hours of nutrient free to flush, 7days to be extra sure. There is a worrying number of fame hungry idiots desperate to put their name to something in cannabis history. If you’ve ever had unflushed bud it snap crackles n pops or doesn’t burn evenly/properly, taste like chemicals, just all round nasty. UK cheese is quite a popular strain and a very unique taste, can tell instantly when the cheese hasn’t been flushed properly due to how it smokes tastes and smells
@@Growdankmeds You need to eliminate your male plants before they drop pollen dude. Your snap crackle 'n' pop comes from seeds in your joint. FFS, at least remove the seeds before rolling if not. lol
@@GerryMantha seeds?? its not 1970 dude
@@GerryMantha all these attention seekers are desperate to put their name to something thats all, fake ass philosophers
Very interesting, many thanks!
Thank you migro and also rxgreen technologies..
What if we flush out heat at the end and moisture, I do because I’m a photographer and I get great colors.
that's just called a proper simulated Autumn flush my friend!
@@jayperez3431 senescence.
@@HAPPYHERBS1 good luck running into that with plants if taken care of properly. Clone a clone of a clone and so on, you will not see senes. Grow a plant for 20 years, you will not see it. Flower and cut every bud but one off, reveg and flower again, repeat; you will not see senescence.
Thanks Shane for organising and sharing this informative video, and to the RXGreen crew. I have been growing for forty years and still learning! Funny how those who are presented with evidence are still denying it. Guess the flat earthers will ignore science and do it their way as usual though.
@Tin Tizzy as long as your not over feeding , your ashes won’t be black residue.
It is clear you did not check the rx green study. Please at least give it a glance before commenting. Please try to find even just a single good thing they did during that 'study' 😂. Cmon man have some self respect... At least if you don't understand (which I highly doubt, the rx green 'study' is very easy to read and understand) then don't post these misleading comments where you are backing up unuseable results
Thank you for making this video
How about outdoor soil? I put manure from my cow around the base stems of my plants. Fowering stage seems to have started. At some point should I remove the cow manure from the ground around my plants and then then just keep the garden hose on them 24/7 for 2 weeks?
We are talking about salt nutes in a container, should never use salt nutes outside keep that stuff organic, feed the soil not the plant.
Might be ok not to flush your plant if you fed at 900-1000 ppm using a TDS meter. On the other hand, some new growers give heavy feedings throughout, creating a nutrient lockout with all the built up salts, a flushing makes a huge difference in tastes believe me. New growers don't even know how acidic some of these flowers foods are and don't even pH balance their nutrients solution. A flush is very good for beginner grows.
What about flushing as a cure for overfertilization and excessive salt buildup in the growing medium?
What I mean is, start by over fertilizing, or start by putting excessive salts in the growing medium. Then test a control group where you do things normal, and another group where you first try flushing and then switch to normal, etc.
Certainly
Also was organic nutes being used or was it synthetic?
Hey Shane, i was reading that Uva,Uvb and farred light is not included in the Par-measurments because they just include everything within 400-700nm wideband. Is there a way to measure Farred and Uva/b to put it in relation with the Par Measurments of a light ? 🤔
Heyho! PAR stands for Photosynthetic active Radiation. Only Light of the Wavelength between 400-700nm is used for Photosyhntesis (or lets say is used the most, turns out uva/uvb/fr and even infrared can be used by photosynthetic machinerie or can regulate the activities of this. BUT ITS NOT the main energydistributor). U usually measure lightradiation in mikromol of Photons in a squaremeter per second, this doesnt change if u measure PAR or not PAR wavelengths. BUT u dont need quantities of not PAR light for the Plants, just a little so they can regulate what they need to regulate and nothing more! One example is that far red inhibits the germination of a seed!(Far red is the only light left after passing through the leaves when hitting the ground level, so this can be used as an indicator for the Plant to see if its overshadowed by another plant which can cause death. In this case the seed remains dormant).
I think the only legitimate reason to flush is to bring out ‘color’ from the plant more. Although, I think it could potentially be bad as you don’t want leaves dying too early, crisping up and making trimming more difficult as you may have dead nutrient free leaves inside your cured flowers.
derp
100%
When I didn't flush i couldn't keep a doob lit. It would crust up. I haven't had that problem with a 10 day flush at the end. Coincidence?
yes coincidence. mine doesnt do that and i didnt not flush at all and since for some reason people think synthetic is a factor i also used synthetic nutes
@@ethdsththwethr7220 i use pro mix and your general salt based fertilizers. I have well water with a ppm of 370 out of the tap. The times I didn't flush the accumulated salt build up after a 90 + day grow ...I am certain that the higher than normal for nature NPK salts were deposited in the bud because there was issues with keeping the damn joints lit, or getting bowl hits.
When I started using distilled water to flush....all my negative fire + bud interactions disappeared. 100% NOT coincidence.
@@allanh6667 ok few things here, for one if your actually flushing for saltz thats on you dude, you just need to water till run off which is not flushing. you water till run off throughout the grow, again flushign doesnt do shit, its 100% coincidence and you're just lookign for some reason to say flushign is useful because thats what you want to believe, flushign is only good for ph lock outs, other then that the beenfits of taste and white ash from flushing is 100% myth end of story
The thousand other factors you didn't mention. Improper drying, curing, pulling plants early, etc.
It's a stupid myth that has no backing in science
@@ethdsththwethr7220 Agreed, when i hear the word flush something has gone wrong.
Great work
@Migro,
is it safer to flush out the nutrients for safer/organic consumption??
Again, Shane lifts the lid on folklore and myth. My favourite is blasting the idea of Grams/Watt as a metric for grow light efficiency. Not very long ago that was “da’ bomb”. Now everyone is up to PAR and PPFD. Introducing scientific method always improves results. Thanks to the great science from Rx Green.
You mean Gram per watt which is an aim not a measurement! and par ppf ppfd is a measurement thats been around for decades ! We didn't suddenly lern this when migro turned up with their overpriced lights.
Grow some hair old man
Yet most weed is still terrible lol
Great video, thanks for sharing migro. I've never flushed mainly because Im to bloody impatient haha, once I did it once, I never flushed again, 👀👀💯
I've watched this video about three times, great show and thank you for it.
Glad you enjoyed it!
This is excellent information. I am now on my second grow. Yes, very much a newbie. I used synthetic nutes in all stages on my first grow and I never flushed. The final product had an earthy, sweet-tasting flavor and was indeed quite potent. This grow I am on now was grown in Pro Mix soil and was fed the same synthetic liquid nutes through the entire growth and flowering stages. I am at the midpoint of week seven in the flowering stage right now, and everybody is telling me that I need to start flushing immediately. But from what I am seeing from this study the zero-day flushed plants show a higher terpene content and basically the same THC content. I'm thinking I am going to continue feeding nutrients up to the last week of flower as I am seeing no solid evidence that flushing improves the smoking experience and my flowers seem to still be requiring the nutrients as they are maturing. Is this good thinking? Or is there reason to believe I am degrading the final quality of my finished product?
When referring to minerals are they talking about chlorophyll? I've always thought it was chlorophyll we were trying to remove hence the yellowing of the leaves before harvest and proper cure to remove the grassy taste.
Less Clorophyll in the Leaves (yellow Leaves) leads to less Clorophyll in the so or so green Buds ? Makes no Sense to me Since the flower doesnt turn yellow and that should be the case when there is less Clorophyll in the Final Product...
From my understanding you are trying to remove any carbon/sugar reserves the plant may have, which is believed to cause the harsher burning taste as a result of excess minerals upon harvest.
The chlorophyll molecule is made out of nitrogen, magnesium and other.
@@StockedShelves The random taste test demonstrates that there is no real difference in taste. If anything no flush tasted better! Flushing is only worth it to save yourself some money on nutrients. Consider the carbon/sugar reserves leading to harsh smoke theory debunked
Great mind blowing video, still hard to believe. I’ve been flushing since I started 15 years ago. Only thing I’d like to add is that one of the things that does happen during flushing is that the color of the plant gets less dark overall. Which hypothetically could make your buds more attractive once dried.
why did you start flushing? because someone told you to?
@@professor4202 I am brand new to growing cannabis. I practiced flushing because I couldn't find any evidence-based study that suggested it was a waste of time. Such are the risks of relying on anecdotal information and testimonials. Unfortunately, the cannabis community doesn't have many evidence-based studies available. And I got sucked in!
@@priayief yeah, that happens. i've got some stuff for ya:
www.rxgreentechnologies.com/rxgt_trials/flushing-trial/
atrium.lib.uoguelph.ca/xmlui/bitstream/handle/10214/12125/Stemeroff_Jonathan_201712_Msc_with_erratum.pdf
hightimes.com/grow/new-research-shows-flushing-plants-before-harvest-may-be-unnecessary/
czcams.com/video/KTWfSjzqvLI/video.html
@@professor4202 Excellent information and just what I have been looking for. Thanks.
@@priayief you're welcome1 the migro video is pretty awesome. the two scientists are quite succinct and informative. it's 29 minutes well spent.
happy growing!
Hello Shane, I don’t have to flush because I use a buffered nutrient so the plant never takes up what you don’t want. I use Mantis Buffered Nutrients from Canada in Tip Pots under Migro 600’s and I don’t have to PH or use RO, right from seed.
I want to see the point where flushing does make a difference (5 week flush) then and what difference does it make.
Flushing has more of an effect on Hydro grown plants with a simple medium like rockwool. Organic super Soils like i utilize are complex, with many different sizes of soil components . Some of which take a long time to break down, and dissolve into a liquid so that it can be flushed out. Nitrogen is the main culprit in adding a green, bitter grassy taste to herb. Discontinuing the use of elements that the plant no longer needs, and increasing slightly what it needs to produce volatile oils near the end. Potassium, and calcium along with other minerals help improve the taste, and oil production. Plants take only what they need from natural soil. In hydro those nutrients are intravenously apply in the water, and enters the plant whether the plants needs them or not. In nature without applications of fertilizers plants fade in color at the end of their cycle. Go organic, and natural all the way, and stop applying nitrogen before flowering. I still flush with pure water the last two weeks.
I always want to know the "how "and "why "..👍🌴👽
Thanks guy's. Awesome info.✌🏻
Could flushing trigger responses that cause the plant to ripen early? That would give the appearance of better taste.
This is the best in depth look at flushing I've been able to find. Seems that 14 day flush is not the way to go, looks like 7 days may be the sweet spot. But that's my take, what's everyone else's opinion?
It depends on what media you grow in !!!
@@TheRasta815 I'm growning in coc coir.
@@derekellisCAN yeah 7-10 days for coco/hydro, 14 for soil, if your unsure do a half and half and see what you prefer.
Excellent and highly informative video. As s craft grower, it's great to be able to work with actual observational data rather than industry folklore. Thank you for your hard work in putting this together.
Go buy a copy of the oaksterdam university's coarse book they will properly teach you what a flush is and what a cure is.
This video is crap.
do what works for you bud
@@topshelfruns2039 absolutely and they're passing off opinions as facts.
And they completely off missed the target to begin with.
We leach the media of nutrients not the plant and our reason is so the plants use up what it has in the plant itself and start the breakdown of chlorophyll.
Chlorophyll is what gives the harsh black burn and hay smell.
30 years growing here and flushing produces a much cleaner smoke.
@@timpage5021 how many times have you grown bud and NOT flushed?
@@DENYAW1 honestly hard to tell over 27 years. Just depends on the grow I’ve set up rather it’s organic dry amendment , hempy buckets , or drain to waste with either coco or soil. If I’m using synthetic nutrients always flush.
Very great info for us as new genetic growers thank you
What brand and how many ppm was used?
i always flush, with every strain, doesn't do any harm and it's something i'm used to take into my routine
if anything it saves us nutrient costs
@William Rice yep! you're totally right, this is a very good video. I didn't flush once and my flower tasted really bad and burnt black. (most likely my fault since i had no idea what i was doing) so i think it's more of a superstition as to why i flush, throwing 65 grams in the garbage isn't fun either!
Ask yourself, in nature, do fruits ONLY fall off after a down pour or simply, when they are ready? Answer lays within!
Flushing works. I've been growing indoor for over 25 years. I don't care what any scientist says. Its obvious that flushing improves flavor,color, and final smoke. I wonder how many of these "scientists" are paid by nutrient companies, or other data bias influences
Do you add sugar or molasses into your flush?
I still do it 10 to 14 days from harvest but I add a little mag/sulfur and straight water last 3 days. I have harvested green plants definitely require more cure time but by leeching out allowing the plants to yellow buds require less cure and smell amazing 👏
leaching
Few days ago I was thinking about flushing... Thanks for this great video. One of the best channels ever.
A few days ago you were correct
@@bobbarker8400 ...my inner voice says the same. ThX(-:)
@@cza1165 did you flush ?
Very interesting. Wish they had a more detailed and thorough curing process. One of the latest bits of info i've found is that excess nitrogen stored in the bud can inhibit or slow enzymatic processes during the curing or long term curing. Which can the lead to auto oxidation of your product.
please expand on cure time and oxidation if you would.
So what causes the different colours of the ash?
carbon content?
Nitrogeon
We need to know what nutrients were used, and what the substrate PH was, along with the runoff EC.
How do you explain cannabis that won’t burn properly because it wasn’t flushed.
When you “flush” do you just stop giving nutrients, or do you actually run water through the substrate until the ec drops to the same level as the input water?
These are important factors
Hi buddie can you be so kind to explain both? many thanks in advance
Honestly bro dont waste your time these people need too read a book.
I think the flushing everyone does is nute starving, not ph lock flushing, with that in mind no they did not soak the plants it's just starving the plant,that's the myth
The way it smokes has nothing to do with the flush that all happens during the curing process where you burn starches and remaining chlorophyll.
@@michaelsheehan7316 Ill say it again, the myth for most growers especially from word of fuckign mouthy since that was the way to really trade info on growing for alot of use back like 8-10 years ago is that flushign helps improve taste, and the ash will be white. these are the main 2 claims of flushing being beneficial I know the pseudo science as to why people believe its true as well so please you can mention starches and chlorophyl carbs etc all you want till your face turns blue that process does not actually make yuour weed taste better and does not give white ash instead of black, that is the main claims of the myth, anything else is your own perception
My understanding in recent years is that it wasnt minerals or enhanced terpenes, certainly not cannabinoid levels, but rather the carbohydrate contents in the flowers. By starving it, it forces scenescense and causes the plants to use up its carbs, which then leaves less carbs to break down during curing. They dont even address that theory at all.
I truly appreciate studies like this.
I always suspected flushing was BS myself, thanks at last for some believable data !
I agree
i've tried flushed and unflushed, i can't taste any difference!
I would happen to agree
@@OG_VeniVidiVici agreed. Bring down temps, bring down hours of light, water with colder water... I've even seen someone put ice in the pots in the last few days to replicate snow!
So then what creates white ash in some weed as opposed to black ash? Would it be more an issue with the drying and curing of the buds???
Hi,
Yes the ash color is due to the moisture content in the bud.
Thanks.