The Truth About Flushing...

[@GardenTalkwithMrGrowIt]

Do you flush your plants before harvest? What's your reason for doing it? Will you still flush after seeing the information in this video? Edit: Lots of people asking why I crossed out the word cannabis and replaced with MJ. The reason is because I am attempting to abide by KZbin's policies. KZbin often censors, shadow bans, issues warnings, and issues strikes for content revolving around that particular plant :(

[@TheBadasbert]

I started growing using GH nutes. In the early ninetys. There were some off the wall people growing. And the cheaper the better. Ground up dog food in water... etc. I think this was the original flush reason. LOL

[@urbanfarmer6865]

Do u flush if u r growing all organic I have heard flush and don't flush in organic grows. ???

[@GR3YS0RG4N1CS]

@@urbanfarmer6865 I'm running Nectar For The Gods and they recommend flushing with their Herculean Harvest (liquid bone meal) and SLF-100 (enzymes) but bottled organics and especially NFTG is different from ammendments (Mr. Canucks decreases the amount in his last ammendment of flower) and completely different from no till (don't flush)

[@DK-pr9ny]

I grow with organic nutes, so I just use plain water the last couple weeks. Weed always tastes great!

[@seandubnium7350]

Definitely and interesting topic of conversation. Happy you shone some light on it Chris (no pun intended...Ok kind of intended haha) Theres an interview with the people that headed up the experiment over on MIGRO's channel where they explain the different steps of the study in a bit more detail. Think the video is called "Does flushing work"

[@jansmith9263]

Finally we’re at a stage where decent studies are being conducted to debunk a lot of myths in growing. So much good information out there now. Love your work Mr Growit

[@paulatkinson4439]

65 yr old couple with our 1st cannabis plant 2 wks into flower. Ohhh boy! Choices & decisions......

[@jgamez8658]

How is your plant now?

[@826_Vegeta_UCM]

Best of luck!!!!

[@moseskelly19]

Well done thought i was old 57 good luck

[@moseskelly19]

60 year old 0ver 10 grows

[@jamescarlin569]

How did it turn out??

[@ryanjofre]

Dude. Seriously dude, Best video intro ever. You summarized it in 5 seconds. Bravo Happy new subscriber, two decade grower.

[@Grizz_grows420]

Ever since I heard Dr Bruce state that flushing isn’t necessary! I’ve stopped worrying about Flushing ever since and I’ve noticed no change in smoke, yield, flavor, etc. 🤜🤛

[@jiggyjay682]

Organic or Hydro ? Either way flushing is better. If you came away thinking otherwise you may have a problem.

[@agdrummer2610]

Dr. Bruce is the man. The dude knows a LOT. I have always just given water the last 10-14 days. I know it doesn't make a difference, but it's what I like to do. This video is very interesting, though.

[@Grizz_grows420]

@@jiggyjay682 Synganic with Soil. Flushing in Hydro I think is a different story. I’m not sure because I’ve never grown or researched Hydro in my years of growing.

[@Grizz_grows420]

@@agdrummer2610 I don’t think it’s wrong however you’re comfortable in closing out a run. So many different ways to grow this plant. Thats what makes it so much fun. 🤘

[@jiggyjay682]

@@Grizz_grows420 I agree. I was just saying I think it may be beneficial to do it just because why not.

[@johnsmith3521]

What they call a flush is what many call leaching. This study proves that the plant doesn't need a feeding for the last two weeks since the mineral content didn't change in flushed vs non-flushed plants. Again, the plant doesn't need any additional nutrients beyond what's in the medium for the final 2 weeks. So if you're feeding your plant nutrients in the last two weeks, then you're over-feeding your plants. Great study! Thank you!!

[@ethdsththwethr7220]

depends on the medium

[@calw8085]

@@ethdsththwethr7220 mostly depends on plant and not the medium. If the plant starts showing deficiencies then it most likely isn’t a strain u can flush that far in advance. You need at least 2 weeks in soil since it’s not direct like hydro. But I can see this rule working as I flush for 7 days hydro and it works as normal.

[@ethdsththwethr7220]

@@calw8085 nah its medium based if you like flushing. mediums like coco dont hold any nutes at all where as soil holds nutes. medium dependent....I dont flush at all just for my own personal belief

[@michaelcarey9359]

@@ethdsththwethr7220 water holds nutrients in solution, coco holds water with it's nutrients dissolved, ergo, coco holds nutes.

[@ShnozzleShabizzle]

Look at Cation exchange capacity or CEC in coco. Coco does hold nutrients and it does need to be noted that a flush is beneficial When working with Coco aswell as soil.

[@priayief]

As a 73 year-old lifelong gardener, I have followed science (mostly peer-reviewed studies) to guide me in terms of my gardening practices. I believe this approach has saved me significant waste in time and money by avoiding the many "myths" in growing my products. I am new to cultivating cannabis and in doing my research as to how to grow this product, I've noticed that there is a dearth of scientific, peer-reviewed tests as to how to optimally grow this product. Almost all information is anecdotal. If there's one thing I've learned in gardening, it's that anecdotal advice is worthless.Yet, contrary to my opinion, there are devout and passionate followers of certain approaches to gardening that simply ignore evidence-based studies on their particular topic. I am familiar with the study that you're discussing in this video. And I agree that this study is "a step in the right direction": that is, home growers need much more evidence-based advice. For me, since I know absolutely nothing about cultivating and harvesting cannabis, I'll follow the conclusions of this particular study. I don't expect that experienced growers will give up their particular methods. If you've been flushing for years and you're happy with the results, why would you change ... that's tough to do. For me, it's easy: I won't bother.

[@dustin2250]

I was curious if you're growing hydroponically. Also with your level of experience, I imagine cannabis cultivation isn't too challenging. Is that true? I ask because my vegetable garden poses the biggest challenges to me. 😥

[@priayief]

@@dustin2250 I grow my veggies primarily in raised beds. I've found if you keep your methods really simple, it's much easier for figure out why one crop fails in a particular season (sometimes, there's no explanation other than a seasonal variation that a particular crop or strain doesn't like). As for cannabis cultivation, I was given a clone two seasons ago. It was a photo period of unknown strain. I grew outside it in a 7 gal. pot. It grew to about 3 1/2 ft tall. I won't go through all the details but through lack of attention and knowledge, I didn't get very large buds. I was successful in making four clones - two of which I gave away and the two others I grew the following season. The second season (with my clones) wasn't much better than the first - for the same reasons as in the first season. I can say that I had a great success in making my clones. I ignored all the obsessive and over-complicated (in my opinion) advice on the web and simply plunked a few cuttings into some potting soil. The cuttings had been lying around for a few days after my first harvest. I didn't expect much but was pleasantly surprised that all four of my cuttings worked. This got me thinking that maybe this cannabis growing thing is simpler than everyone makes it out to be. Probably. As for your vegetable garden: keep it simple. Put about 3 or 4 inches of quality compost on top of your beds at the end of each growing season. Don't bother cultivating. In the spring, plant your seeds and/or seedlings into the compost, cover with a mulch and water only when you think your plants need it - over-watering is the most common mistake. Expect some failures - these happen to even the most successful gardeners. Hope this helps. Cheers.

[@TheArcticWonder]

Did I just read an intelligent, informed, polite and well-written youtube comment? You're my hero.

[@dustin2250]

@@priayief Thank you so much for the good advice and taking the time to share it. I was considering a raised bed. Now I'm confident I should use that method and will do so. Thanks again, Captain Ron.

[@hydrogehtab]

@@dustin2250 Im using hydroponics. I change the water every 7 days in flower and veg. When your in the last 3 weeks of flower do a last change and after another 7 days use chlorine ( a similiar product like purolyt will do the job) once. Now when you reached the last week of flower change the nut solution to ph 6.2 osmosis water. Combining this with reducing the light cycle starting on day 2 of last flower week for 6 hours and doing the same until you have a three day dark period which ends into harvesting in the morning (I know this is said to be a myth)

[@michaeladams562]

Been a new grower sense may just wanted to say I appreciate all of your info your advice has helped me yeild almost 3 Oz's per plant in my second grow.. much love man keep it up!!

[@GardenTalkwithMrGrowIt]

That's so great to hear! I'm happy that my content has been beneficial for you. Cheers!

[@michaeladams562]

@@GardenTalkwithMrGrowIt Honestly man you are the best instructor out there I really appreciate all you do for this master craft we all love

[@Miles-ru8ox]

Yes. In the last month I think I e watched every video of yours and have a quarter of a notebook of notes. I started my first grow about 30 days ago and really appreciate your time and knowledge. I have sent a few guys to your videos. They appreciate it

[@Mene_OG]

@@GardenTalkwithMrGrowIt I think its better teach how to achieve grest percentage of resin. Yields is uselles, without resin content. Example: is it better a 20% big cola or 30% small buds? The right thing is calculate how many grams of bubblehash u can achieve each meter. More important that gr/watt that is good to know if u sell buds. But for quality only, u should teach how to achieve the maximum percentale of resin that is OPPOSITE of big kolas. In other words: quantity over quality. Who cares about quantity in a meter only grows? A good result is 160 grams of bubble hash each meter for example. Quality is more % of resin not bigger buds (that are the opposite of quality in my opinion)

[@DL-ut8vr]

Prob doing a great job makes a lot of cents

[@illmech]

every time I'm at week of a successful (so far) grow I always find my watching this video again. Mr Grow It has got to be the greatest Grower on The Socials. & there's more than a few great people who Grow on The Socials. Thank you for everything & in particular after reviewing this study thank you for letting us know not using nutrients the last 14 days is a pretty smart move.

[@jonguerrero9035]

Mr.Grow it !!! This video is SUPER beneficial, for those who think this video is useless or don't like seeing Mr. Grow it Give free information & advice be cool, flushing is a wide opinion & there is no right or wrong way to flush

[@johnsmith3521]

Yes! Let the man give us information for us to digest and come to our own conclusion on

[@solvend]

I'll keep flushing 14 days, works for me and it's good to know I'm not losing yield or potency by flushing.

[@suffist]

@@420troll4 How? They would still need watering and time, except you aren't wasting any nutrients. Or are you just trolling as your name suggests?

[@canna_craigy_uk172]

@@420troll4 true, watering and flushing are 2 different thing's Flushung in my eyes, is pouring gallons of water into the medium Watering normally with no nutes is just watering

[@KingKong-mp6gj]

@@canna_craigy_uk172 +1 Imo it's much more interesting to think about feeding the plants with the amount they will actually use up, esp. from a commercial perspective. I always found it quite ridiculous that hydroponic growers pump their ladies with insane amounts of nutrients just to flush all the saline out again at the end. Thought it might give them fatter buds to flex with in the growing scene which would be fine in my book. But with this study i feel validated in my initial scepticism🙃

[@B.White70]

@@canna_craigy_uk172 to the 🪴it's a flush of its system. To you it's watering. Otherwise I agree.

[@canna_craigy_uk172]

@@B.White70 flushing does nothing to the plant, it's the medium it removes nutes from, cannabis can't be flushed once it absorbs food

[@855MAGICAD]

Everybody is all over flushing for the smoking experience and few if any pay attention to those who only want to make edibles... Flushing product that will ONLY be used in edibles.. is overlooked by folks.. they all seem to be "target locked" only thinking of smokeability... Can we get some clarity about producing edibles? I ignored the idea of flushing for this reason. It just doesn't make any sense at all for those who just want to create edibles! This study is GREAT... thanks for bringing it to us!

[@dougstaley2390]

Hey brother thanks for the videos. I agree with the study on not flushing. I think the overall whole health of the plant during the entire growth cycle should remain strong. I do pruning that reduces the amount of foliage because your follage is just used as storage of nutrients for the plants to use. This way the plants are using the nutrients for building the flowers. Also, I feed every third watering throughout the entire life cycle in order to reduce toxicities and salt buildup. It seems to be a healthy method and my plants respond well.

[@pjarma8536]

I’m a new grower with a gorilless and she is in late stages of flower and you just answered all my curios thank you 🙏

[@themagikshow4968]

I love how you pin pointed the breakdown of chlorophyl vs harshness and curing time

[@jasongreywolfleigh]

Thank you for going to the troubles to this end of flushing research. Very impressive Sir. I am an elder new grower who needs to do the right thing/process to make certain of very smooth non-harsh product, due to health issues. I cannot enjoy the blessed lifelong herbal medicine otherwise. So, it appears that I shouldn’t need to harvest flush with taste, THC and smoothness being my main objectives. BTW: I’m in the 2nd week of bud-building-flowering of 2 sativa and 2 INDICA females. Had some issues with the sativas, yet studying the research, personal insights and trusting the plants themselves helped, but the best info I discovered was via KZbin growers like you who helped newbies for free with your knowledge! Thank you! Oh yes: on another video about potting souls, you stated you never heard of anyone having good luck using Miracle Grow. I began this fist ever grow using it, and they are compared to and more beautiful than most others who used all sorts of additives and mixtures. No brag, just fact. So, Miracle Grow, Good. Naysayers; bogus. JGL

[@angelsinthecloset8714]

Finally!! Some real science with verifiable results!!!! Been waiting for this info! Thanks so much for diseminating it!!!

[@_Reals]

You know... you read my mind everytime! This is why I always watch your videos cause you know what to talk about! I was just asking and doing research on flushing. And bam here it is!

[@BongataMothibe]

I truly needed to hear that, im definitely not flushing my plants. Good is better than okay, period! 🎉🎉 I just need to work on the drying and curing it seems.

[@josephpavlis]

If you watch the full video, they actually say there were 62 or 64 participants that were involved with the test. So it wasn't just a couple of testers. Your comments are also appreciated as it does seem to make a difference in probable time spent drying and curing for the non flushed plants. Plus costs and time personally spent mixing nuts etc. What I found interesting is that the worst tasting etc samples were the plants only flushed 7 days. So it does make sense that at least 10 to 14 day flush is better than just a week. This is important because sometimes in an outdoor grow ot becomes necessary to cut down sooner rather than later because of ripening. You sometimes don't have 14 days to flush because that plants for reasons of outdoor temperatures and other factors play a role in how fast they ripen. Recently in our area we were having temperatures ranging from the high 80s in the day. ALL the way down to 50 at night. It really spead up the ripening time by a great magnitude. One day your looking at white pistols, the next 50 percent have darkened. Plus trichomes all of a sudden are all milky. So now it's time to make a decision to flush for a couple of days ofr just skip it. The leaves are also turning yellow on there own faster than otherwise would have happened during a flush. It's truly time to cut to save the quality of the medical quality of the plants. Not all but three quarters. Thanks for your time and help.

[@stevecarlyle4305]

THANKS FOR THE INFO…IM A HOME GROWER MYSELF AND TO BE HONEST I CURE IN MASON JARS WITH 62% HUMIDI PACKS, I LEAVE THEM UNTOUCHED FOR AS L9NG AS A YEAR AN FOUND THE BUDS SMOKED SMOOTHER AND THE TASTE WAS SWEETER AND THE HIGH WAS FAMOUSLY GREAT. SO I DON’T SET A TIME LIMIT ON HOW LONG IS TO LONG ON MY CURING PROCESS. THANKS, I DO FLUSH ONCE IN THE LAST WEEK, I GROW IN RDWC SYSTEM. THANKS FOR THE INFO KEEP UP THE GREAT WORK!

[@saintmichael2759]

Thank you for those findings. I suspected through my own experience this. And I agree 110% about harshness. I think it has more to do with curing time. When I started years ago I thought I ruined a couple of my harvest because it smoked so harsh 2 weeks after curing. I just bagged it and stowed it somewhere. 2 months later I was dry and desperate. Broke out my "Bad" stuff and was blown away by how smooth it was and a hell of a lot more potent. Very big lesson learned.

[@Nate_Dogg714]

@FilthyDank Wasteman the 11th well he DID say it. He just “bagged it and stowed it”.

[@deee2402]

I've experienced the same thing. It's definitely like wine. It's take time.

[@dale621]

I just opened a jar of Money Maker I grew from Strain Hunters its six years old and smokes and taste smooth ,also still very potent.

[@floreschris5574]

​@darius2402 except if it's full of nonsense, once the water dries you are left with pure bud and harsh chemicals. If it's water bud once the water dries ya left with pure smoking bud

[@_zajlock_6635]

Remember, it's never good to be desperate for weed.

[@cherrypopins]

I been growing in the same soil like 10 runs. And I don’t amend the soil. Or flush it in 15gal pots. Going on 3rd year same soil.

[@shakuhachipete]

After watching this video I'm going to stop flushing. I also am happy that you answered the question of whether to feed the plant the last 2 weeks. Thanks!

[@d-obvious]

I've watched the study vid shortly after it's release. Honestly I was surprised that there was so little difference between 14 and 0 day. That said, I'm on your page, if I'm not mixing nutrients for the last 2 weeks, I'm saving money. I'm one of the 14 day flush guys. It was reassuring to find no difference in thc or terpene content with the flush. I appreciated your take on the data and thank you for your time putting this commentary out to the community.

[@jacksilver2515]

Great info for a home grower 🪴retired 67 & started growing 3 years ago* thanks man' ☮️

[@WatchCLtv]

Dropping gems on em! Good stuff growmie! P.S. I dig the tee

[@w_jk3554]

Rob is that you ?

[@WatchCLtv]

​@@w_jk3554 that it is

[@w_jk3554]

@@WatchCLtv itching for the new vid !!

[@WatchCLtv]

@@w_jk3554 Just dropped one on our channel yesterday and got a new episode of From the Stash dropping tomorrow

[@tezzo55]

"Growmie" Ain't heard that before, hilarious. Thanks my growmie :-)

[@KingKong-mp6gj]

For a follow-up study it would be interesting to test even longer flushing periods until the quality demonstrably decreases. Would like to know up to which point the plant actually even needs nutrients at all.

[@moderndiogenes]

I would like to see the different in inert media vs soil/organic. Im sure in soil it takes much longer to truly deplete the soil, with a hydro setup you could more easily see how much dialing back and when affects growth and by how much.

[@ninergangtae2157]

@@KingKong-mp6gj I’m actually about to do something like this but I don’t run a yt channel 😭

[@Blackskillpower]

​@@ninergangtae2157 do it make one ❤ 🎉

[@samsmokes3100]

Hey man new sub here! First off I’d like to say make more of these and keep them short just like this one! I have been looking for a cannabis grow talk show to listen to as I drive to work every morning More topics like this, thank you for the knowledge friend

[@Bushmen918]

Many reasons but hear me out , nothing wants to die and if you have grown for any amount of time you will notice not all plants or strains behave the same, sometimes if you don't starve them they just hang on and never ripen up right flushing is a way to help induce death in a plant now with that being said I also pick plants that finish faster vs waiting for a flush ... growing is an art and there is a lot to be said for curing as well. Great video and great questions .

[@danieldelgado1052]

Wow bro! Great video and very informative! I love how you read between the lines and see things that are not specifically mentioned. I appreciate the time you spend to give us pertinent information and your input as well.

[@jamalwatkinsQ]

I’m glad the algorithm showed me this because I’ve always heard to flush to get the nutrients out but the whole chlorophyl thing makes so much sense thanks for the vid brother!

[@goinbzurk]

Great Video! I'm new to growing and as most newbies we tend to over worry about whether we're doing things right. A friend of mine who is much more seasoned as well as other posts on youtube say " don't over think it! IT's A WEED! Nature doesn't flush or does (depending on rainfall) It grows in the wild un-pampered and unattended so logically, at least for me I'm going to "leave it alone and it should do just fine!" I'll just water with no nutes the last 2 weeks. Curing may take longer, but I'll have plenty of weed after harvest that eventually I'll be able to find the optimum cure time since it'll take quite a while to consume! Thanks for clarifying the study! Great info.

[@albertafreeandwild3252]

Thanks again for taking the time to do things right and passing it on to us, THANKS!!! Cheers from Canada.

[@matt-vi2du]

Man you're so good at communicating your ideas and points.

[@brendanmcandrew2782]

Great video! I'm just finishing my first grow. Was planning on doing a 7 day flush (Coco) but now I'm rethinking it. Hmmm

[@jacquelamontharenberg]

For my autos in 7 gallon grow bags, I use Neptune's Harvest Hydrolized Fish Emulsion from start to about 2 weeks before harvest.. Then use distilled water.

[@NathanPCGamer]

The only obvious oversite with this study is growing in coco. I may be wrong, but I thought coco was popular because it drains well, and doesn't accumulate nutrients the same as plastic or fabric pots of soil would. I read through the study, and they make no mention of this study's applicability to soil or hydroponic grows.

[@dadude1234-p9h]

New grower here, I have been scouring KZbin these past 6-8 months trying to to soak up all the info about growing, harvesting, drying, and curing I can find lol. I’m trying to get the best info I can (imo) Of course and come across this Video and the 48 hour darkness interview video. So basically I have come to the conclusion that no matter what process you follow when it comes to harvesting/flushing etc is all bro science lol. Basically try it all and whatever works best for you then run with that lol, I’ve realized there is no exact science when it comes to cultivating these plants lol. Basically do your research try some methods out and pick which one works best for you lol. Cause almost every single grow channel on KZbin does something different throughout the life of the plant and they get great results lol. I appreciate the information. I have come to really like your channel’s, you’re very informative and I appreciate the fact that you explain what you’re doing and why you do it! It helps me to understand what my plant is doing and what it needs from me to thrive.sorry for the long comment here lmao but you are much appreciated sir

[@ismaelmarrero465]

Outstanding breakdown, Flushing for sure, less overall grow cost by eliminating final feeds and possibly eliminating chlor. taste sooner.

[@unclejake1476]

You got the key word there. Sooner. You don't need to flush if you're curing for 6+ months.

[@OctopusH2O]

@@unclejake1476 come on man who cures for 6+ months

[@Nate_Dogg714]

@@unclejake1476 if you’re curing for 6+ months then u grow far too much weed. 😂😂🤦‍♂️

[@ShnozzleShabizzle]

I do a flush, in Coco, however I don't push any more liquid through each plant than I normally would on a feed day. Normal amount of PH'd water, at tap water ppm, mine is 130ppm. I do that for 14-18 days, or until I see my ppm go below 250, or closer to my tap ppm of 130, then chop. I enjoy the show, keep up the good work man!

[@dylanarcher827]

I normally flush for 7 days (coco), but my last harvest only flushed for two. There is a definite chemical tang to the harvest with the short flush.

[@DENYAW1]

mmm it would have been better if you got a friend to blind test it. The fact that you knew how long it was flushed could affect your mind in thinking it tastes different. the mind is a powerful thing. also 1 grow is different from another so it would be an assumption that it was down to the flush and not scientific evidence that it was the cause for the difference in flavour

[@floreschris5574]

No flush= poison bud Flushed water bud after water dries leaves pure smoking bud

[@KamiKomplex504]

I think most of the perceived harshness in dry vs wet bud is the burn rate and the heat of the smoke. I would think controlling for this would eliminate the effect but don't have a study on this to cite.

[@DS-qy3qv]

The difference is with dwc, means you can chop without trying to drain the last of the high ec soup they wont use. Basically if you see any mold/pm chop it without flushing and you wont die

[@DonnySwordsAuthor]

I usually stop fertilizers two weeks before harvest, except when using floraflex. I stop floraflex 8 days before the chop because the ripening is better.

[@ralphrehcok]

I have heard from numerous people doing research that if you don't flush the final product is more harsh. Good point on the chlorophyll breaking down. That may speed up the curing process a little bit. Need more data to input into brain. Keep up the great work man.

[@olysean92]

Thanks for covering this. Yours is one of the four channels I trust to give actual and accurate info. Most talk in circles, never actually giving any useful info. MIGRO is another one of the 4, and I heard about this there. I'm about to flower for the first time, and EVERY other channel, trusted or not, says flush, but they appear completely unaware of this study. I was really hoping to hear a second opinion that I respect. I'm with you. If it makes no difference in the cured flowers' smoke, save the nutes and get more grows out of the same bottles.

[@panpdx8919]

Looked like a solid study to me. Unless there is some reason to think their nutes are different in a core level I think it makes sense. For me being a small home grower it just means I am more apt to harvest when I think they are ready without stressing if the flush has been long enough

[@Stonezster]

Try it without flushing and you'll quickly realise what is true.

[@panpdx8919]

@@Stonezster I have, came out fine. Now, I admit I did not flush a plant to test against as they all were getting pretty amber and I wanted to harvest but I got no bad tastes

[@adamhatch8312]

@@Stonezster here comes the youtube science. Stop

[@Stonezster]

@@adamhatch8312 KZbin science? I've been growing since I was 17 and smoking daily. I'm now 55. I can clearly tell the difference with a flushed hydro plant and an unflushed. KZbin has nothing to do wioth it...

[@adamhatch8312]

@@Stonezster don't need to flush for a month.. total bs.. 1 flush maybe 2 and done. Anyone says other is in denile and stubborn with there ways.

[@duannegarrett5800]

I put straight water on my deck to 2 potted 6:27 plants.Below the deck is blacktop sidewalk. After flush and water dried out on blacktop it left a white spot.Like after a snow theres salts on the blacktop. (Same thing)There was alot of residue. So i will continue to flush.....Just an opinion

[@Sidebranches]

Always looking forward to seeing your videos

[@GardenTalkwithMrGrowIt]

These are the types of comments that keep me going. Thank you!!

[@hambiscuit9943]

Hi Mr Growit, love the video. I'm working on a fresh harvest now. Orange velvet underground from ethos OG kush and nutter butter from Humboldt. All my testers taste great. I do drain to waste so hell, I flush every day. Good growing and stay healthy. I plan to run the Golden Goat by Rasta Jeff in my next grow. Maybe I will check out your chillout OG before long. Would love to try it . Cheers and happy growing

[@trowe1975]

When I first started growing I thought flushing was to only give water for last couple weeks. When you see the color of the leaves fade means the buds are taking from the leaves. Take them down. Its always worked for me.

[@FloTheArtist]

Intresting point .. What do you think about flushing in organic garden . ?? Thanks

[@FloTheArtist]

What would you do lets say if your last 3 weeks in and see yellowing rapidly developing bht still have a bunch of white hairs .. would you wait till 70% - 80% are orange or just go by the milky trics .

[@tis0i0the0cuddler]

Maybe the changes that occur are only observable once combusted. They should do the same study but test each sample after it’s been burnt or decarboxylated at least.

[@HappyHydro]

Finally someone studied this!

[@easytoslip6877]

Thank you for presenting the study. I am with you. They showed why you want to flush. It may not be for yield or "smokers experience". As a vaper, I believe that I can tell the difference. But I definitely would love to get that natural fall look with the leaves yellowing at the end of flower. Small indoor grow in soil with organic nutes. I will keep doing the 14 day flush.

[@Cookie.x.monsterr]

When people say 14 day flush what are you actually doing. Like. Flush and leave for 14days or flush everyday for 14 days .....

[@easytoslip6877]

@@Cookie.x.monsterr Flush 14 days before expected harvest... Then water only after that when they look dry.

[@onlyfacts7816]

Great thoughts on the chlorophyll leeching during flushing reducing cureing time

[@timpage5021]

That's the precise reason I do flush and been doing it 30 years. I leech the media of nutrients by simply stopping nutrients once the trichomes are all cloudy and give the plants nothing but PH adjusted water for about 10 days. It forces the plant to use up what it has stored furthering the breakdown of chlorophyll. Thsts the fade is the chlorophyll breakdown. I'm glad someone else understood this.. But it amazes me people especially new and novice growers "under 5 years " still think we "flush " the plant by drowning it with insane amount of water. Its simply water to run off enough to slurry test last 10 days or so. There is no reason to give a plant 1500 ppm of feed in last 10 days then again 5 or even 3 days before chop. That's insane. Even nutrient companies that have been around for 40 years like Fox Farms and General Hydroponics recommend flushing and stopping days well before chop.

[@ethdsththwethr7220]

@@timpage5021 yeah welll 30 years and your terminology needs work

[@timpage5021]

@@ethdsththwethr7220 the fuck you talking bout troll. You can't even make a coherent sentence when your feeble mind is attempting a statement. Learn your prepositional words then come come back and dispute facts kiddo. If you can't understand the very coherent and cohesive response in my original post then your GED isn't worth the paper its printed on.

[@bentgenetics8623]

Great study. I can tell if my buddy doesn't flush, it's rough smoke and ashes are black. Thanks for sharing

[@BackBurnerKitchen]

I finished my first grow including drying and curing in Feb. I didn’t really understand flushing and by the time someone told me I needed to flush, the trichomes we’re telling me it was time to harvest so I didn’t flush. This is obviously a one time thing and strictly anecdotal but my flower had nice terps. The aromas and flavors were great. It’s a smooth smoke and I have to be honest, I was scared I fucked up by not flushing. My anecdotal evidence sides with the study.

[@kylesgarden8725]

Need more studies to be conclusive as well as studies on cure! Good video thanks

[@Bagelstorm]

I found this out by accident when i was feeding my plants and decided to harvest thinking they were finished (they were probably 1.5 weeks from being finished but at the time i didnt know) with a ppm runoff of over 500 right at harvest, i found it was some of the smoothest smoke and best tasting herb ive had, comparable to high grade. Man i miss that pheno

[@travisanthony11]

so your trying to say DONT flush??? And coz u did NOT flush u came to the conclusion that the smoke was smother than usal [ usal being? flushing i guess. ] That is the total oposite of majority of advice/opion/experience, Maybe u did something else in that grow different and smooth smoke was a coinsidence????

[@WisdomIsPrecious]

500 ppm in what medium? That’s a lot different if it’s soil vs coco

[@6sense187]

New grower here....I'm watching all your videos.

[@MMorMM]

I had an Indica (appeared 100%) come up on its own, under a mesquite tree, I just started feeding it after 6 weeks or so. It came up Feb 24th or before. All on its own. I didn't plant it there. Maybe a bird did. I had my 12 plant crop a few feet away 3 months before. Hallelujah!! I gave it a little GH trio, and then added GH Bloom Booster 0-10-10. HOLY MOLY... yes, skunky.. It started to flower mid-April. Yahoo!! There is a God! 😊

[@nihilityjoey]

Good video. If you are on the final week, or final 3 dry feeds. Use water, silicone and fulvic acids. These aid in the plant uptaking the nutrients left in the medium and in the plant material. Your quality of smoke or the harshness is more down to your curing. Badly dried and cured weed is the final factor. It really shouldnt be called flushing at all. All you are doing at the end is not wasting nutrients and helping the plant on it's way. The flushing you can do during the growth of your plant (especially hydroponics if you have over fed) is stabilising your medium out by flushing a relatively light nutrient solution through the medium until the EC/ppm and ph are both lower and in balance again for the plant to readjust and uptake.

[@rb9998]

Got here late but I appreciate you for doing this subject.

[@realthor89]

I don’t use any nutrients after week 7 day 49 of flower and just water PH in my DwC 5 gal from day 50 to 70 so I basically just feed water PH for 20 days before cut . It’s basically to trigger the end phase and it cleans the exudates out as every 5 days in switching the water out . The plant will uptake and then exudate and it will be there in the medium when you switch it out over that 20 days it helps produce more and swells the buds IMO triggering the defense mode and making colors , more trichs , swelling up . Hope this helps anyone.

[@CRYPTO-FEVER]

Hey man great video and all your videos are great in general! That being said I totally agree with you I have done multiple organic grows where I have not flushed at all and my plants always came out amazing potent very tasty and absolutely no harshness to them at all so with first hand experience I can say that flushing is not necessary at least for organic grows!!

[@rastadanman]

There is nothing at all to flush in a purely organic grow. This usually only applies to salt based feeding

[@Санчес-я1т]

There is no difference in the final taste of the buds between organic and mineral fertilizers. Since organic matter breaks down into the same salts. This is the same. But organics need time to decay, and mineral fertilizers are ready-made and therefore the plant grows faster and more with them.

[@highvibegardens]

I grow all organic roots organic dry ammendments, along with some of the soul synthetics bottles synergistically. Once I get to a good 5% amber trichomes I begin 7 days of "flushing" using the same PH water, and same microbes, the ONLY thing I add to the water besides that is unsulphured molasses. Usually by the end of that 7 days there's very few, hopefully no clear trichomes left. Then after 24 hours of darkness just to get the pot extra dry before the chop. I have personally NOT had any issues with bad smell like cut grass or hay, from too much moisture usually. I truly don't think I'm doing any special secret method, it just works for me and leaves me with some smooth, tasteful, and very sticky buds. Life's good, and I can't complain, thanks for your time. After my 4th time listening to this video, and wasn't driving, I figured I'd share 🙋‍♂️💯

[@mitchalanpatchett]

I work in a canna facility and when we do a moisture test were put a certain weight of bud into a machine that vaporizes it to determine how much moisture comes out. It's supposed to be like 12-14% moisture content.

[@Vpeezydoesit]

where at bro i’m tryna become a grow master 🪴

[@georgemontana2694]

Great critical evaluation of the study.

[@ssbf1095]

Very informative, and always glad to hear that stuff like this is actually getting studied. I'm a definite flusher, heard that more chlorophyll adds to harsh taste. Apparently not! Still going to do it, though, I want my plants as clean as possible when I harvest.

[@floreschris5574]

Trust ya gut, what the gut said doesent match with experience, it's lobying

[@jasonhanna1147]

Man your knowledge and videos really helped me out. Thank you sir!!!!!

[@likefatherlikeson6352]

Agreed

[@prof.dr.gambohechel4030]

Damned...just the video i was searching for. In german there are no such good informational videos. Thank you ✌🏻🖖🏻🤘🏻

[@gingerd2098]

I don't flush but since my organic dry amendments take a while to break down in coco, I don't bother adding any if my plants are already fading. No point wasting nutrients if the plant won't be using them imo.

[@texasbackyardgarden808]

The question I have is “what type of growing medium are they testing?” Cutting all nutrients in hydroponics is much much different than soil. With soil buffering of nutrient they are actually still receiving nutrients vs hydroponics.

[@mikeshatford6706]

He does a really good job at making it feel like he’s teaching me but he’s teaching a whole audience. He makes it feel Personal and kind of connects with the audience

[@robertprado5125]

One of the better channels for sure.

[@teddyrva2779]

I do it for the last 2 weeks or so because I didn't on my first grow (back in the 90s), and the flowers were almost un-smokable. They burned to a crispy black ash and wouldn't stay lit. 100% unburning in a joint or blunt, and had to keep fire on it in a bowl or bong. I was using miracle grow (and that was probably my real problem) but I've done it ever since and never looked back. Plus, since they don't need it, I save a few bucks on nutrients. I've always grown in soil...usually a self built soilless soil. I've taken the water only as long as 3 1/2 weeks and I've never seen any deficiencies during that time over hundreds of harvests.

[@Millershairlife]

Really good addition. Great job putting out information from other places to help others learn, not many share the knowledge library on their pages they’d rather claim the knowledge as their own It’s good to see shared credit.

[@mtndan6969]

There is another interview with one of the people that conducted the test, she was asked just that, why use it if it doesn't change anything. She said something along the lines of "We proved both sides of the argument. You don't need it but it won't hurt it to keep using it. It's up to you"

[@carrottoponcrak]

Right? If you see the results as flushing is pointless ok don't flush, but also if you see it as using less nutrients ok flush and use two weeks less of nutes save that money

[@afili8ed]

I flush for 7-10 days depending on size and length of flower time. I’ve had overall better results in taste, harshness, and oil production it seems. I’ve tried no flush at all, and the buds were a bit harsher and the ashes were black instead of light Gray. I personally prefer flushing for a week using sledgehammer flush from FaxFarm nutes. That’s all I use and my flower comes out spectacular!! Good video good info keep em coming Mr. Grow It! Thanks

[@mattterry9766]

Fox farm nuts make buds harsh dont use that

[@liquidmind]

@@mattterry9766 i dont get why waste money on FLUSH additives, when WATER is free,,,,,, and it flushes fine itself......

[@k6meodmt564]

Love your show I've learned so much thank you. I will say this, I did not see this episode before I saw that study and I was just about to finish flower and I had a couple weeks left. It was 4 plants in DWC and I did not flush these. I always have flushed for all my grows but this one. Also I am using general hydroponics fertz. These 4 plants after cure are indeed harsh to me and the ash is really dark. Honestly I don't like it and wished I flushed at least least 2 of the 4 for the experiment but I had a lot on hand from last grows. Anyway from here out if am in hydro or coco I will ALWAYS FLUSH LAST TWO WEEKS! The older green I have is about 8 months older than this and is very smooth with light great ash. ✌️

[@robertgayda5933]

Great info. I flush 10 days, and am waffling...I am a taste and smoothness guy, and yield is not an issue...right now I am really struggling with harvest indicators(trichome color/maturity)...Thanks!

[@IYIarijuana]

Get yourself a tiny 100x microscope and check out the color of the trichromes! They have some now that attach to your phone, but I like some of the old school hand held ones. See if they are clear, then it's too early. Or milky looking. I like milky with about 10% red heads personally, but if you want the highest % harvest when all milky I believe.

[@Pucker-it-up]

Go to the methods section of the paper and you'll be able to know what respondents/ subjects were used for the questionnaires

[@geraldwest3428]

I have always 'flushed' the last couple weeks. 'Flushing' defined by dropping ppm/ec in increments along with decreasing flower room temps/humidity. Removing chlorophyll as you mentioned has always been the objective along with influencing more color in the bud. The amount of nitrogen used in earlier phases of flowering play an important role in 'flushing'. I use to call it 'flushing' many years ago but 'finishing' seems to be more appropriate for what I do. A few final days of total darkness lowering temps even more has also been helpful in a final finish before chop. Thank you for the honest straight forward content. I'm always exploring better ways but mastering the simplicity of fundamentals has yielded a lot of fulfillment for me.

[@SatyaKaliYam]

Hey Chris! I’m Chris ✌️! But 💁🏻‍♀️😎 😊Thanks so much for sharing the study and your perspectives on flushing. I’m about to harvest one of my 6 plants I have (technically one is a clone from one of the accidental toppings from one of the 5 seeded planets I have and I was fortunate to make it root and a clone out of it). 👍🌱 Originally I had grown them in potted coco coir indoors. Then moved them outside as outdoor grows and transferred them into the 5 gal cloth potted plants. However, two of them I decided to plant them in the ground and didn’t really remove the 1 gal coco coir mediums that they were in and mixed them in with organic soil/mulch soil as the remaining medium surrounding it. But kept feeding them all synthetic Botanical nutrients and recently I am flushing one plant for harvest. It was the first 1st I planted in ground. I’ve only flushed it out with lunsulfur molasses and terpenez mixed in RO H2O without any nutrients. Do you think that I should go up to a 7 days or just harvest now? I’ve only flushed twice with the one gal mixture. I’m thinking just not bothering doing anything more with stuff but just add RO water? Cuz like it’s so time consuming to mix all the nutrients or sugars together. 😅🤪🥵😰😵‍💫 I really appreciate your channel and the support you give to noobs like me. 😜✌️This is my second time home growing (on the fly and learning from different professionals) and I happen to get these seeds from the mother plant I grew back in 2019. I had 6 seeds and all sprouted. 🙌🍀👍Though one of the plants ended up growing all weird, and ended up removing it and had 5 plants left and plus the small clone. Well thanks again for sharing this video! 🙌⚡️❤️🧠🤓😍😘💝🐲🍁🌱

[@rasmaven7271]

Always great thorough info. I was just about to go flush for my first time. Now I think I will do something else with my time. #noflush

[@arstotler]

I was getting ready to start a flush now idk thanks for every video 3rd grow and always learning!

[@rootballrandy]

I've heard others define Flushing as running tons of water thru the medium to get the EC ppm way down, like 10 to 20 times pot size in water. and Leaching defined as watering with plain water, the regular amount of water used during normal waterings. I have a feeling the test they did was just normal watering without nutes.

[@dawie4853]

You want as little nutes left in medium as possible. Also only soils and pro mices work for his, not hydro pellets etc. The idea is that unneccesary nutes/unused nutes migrate back into the medium as it becomes depleted with final drybacks, literally sucking out any raw nutes not used (pollutants). Clean meds only

[@loshobian]

@@dawie4853 nutrients can't come out of a plant after they've been assimilated by a plant, that's why flushing is BS

[@puudub]

It was hydro, so no. This is how disinformation spreads.

[@overdbus]

Wondering what PH water they were using? Another question is did the 10 and 14 day flush’s cure faster and or have less of a “hay” smell during the curing?

[@AndrewOS83]

Chris... you're a solid dude, brother. I appreciate your passion in both the plant and the transfer of information to us noobs. I'm gonna stick to my two week flush. This was an interesting look for sure though. Take care man. All the best in the garden.

[@theresarojas2176]

Nice to see the face of the soothing voice.

[@GreenLeavesGrower]

My slurricanes leaves were still 85% green when I harvested and was some of the best smoke I’ve had thus far compared to other plants who had completely faded , still smelled amazing as well . I think I will still flush but mostly for looks

[@teazytee7713]

I had a 2 plants harvested with leaves on the green side and still came out clean with white ash

[@tonyb.7158]

I know this is an older video. With that said, I'm at the stage in my grow, and you have not failed me yet with your videos. TY for the valuable information MRG-IT.

[@cuzmasdgc6781]

I grow In dwc and I don’t see any real difference in the end, flush or no flush. Thx for the video:)

[@renegade2171]

Has any one tried flushing with roots out of soil in bucket of water i did and turned out good cuz I think the nutrients are still in the soil when flushing in soil,the buds even got heavier and bigger in the water.

[@stickyikygreen]

100% how the sample was dried and cured is such a crucial variable

[@MarcianoJRL]

they microwaved it

[@farrell72563]

I agree 100% that how you dry and cure makes all the difference between good and great bud. Not so much with flushing.

[@stickyikygreen]

@@MarcianoJRL lolol

[@MarcianoJRL]

@Magic mexican weed is better xD

[@philjoy6635]

Drying is the most important thing to do right go slow

[@arahant69]

If you use just Sulphur* and hygrozyme (*Shogun dragon force nutes) in week 8 doesn't this initialise the death knoll for the plant to squeeze out those last bits of growth and turpines, turning the leaves yellow before flushing in final week 9?

[@johnnysgreenextractions8144]

Hi Chris I find that setting up a timeline like one or two weeks for Flushing is just a rough estimate. different cultivars and different size of plants uptake water differently. The types of fertilizer you use also makes a difference. I find that using a PPM pen and measuring your runoff making sure the PPM on your runoff is equal to the tap water or RSO water that you are using. This is a true indicator. love the channel bud

[@Санчес-я1т]

RSO water?

[@kearstinnekenerson6676]

i am on my first grow and i have used live soil so i haven't added this grow but i plan in doing it different my next grow and controlling my nutes

[@falldogg8606]

Cool video with a great response, great job dude! For me its all about getting the ppm of run-off as low as possible towards the end of flower. Many variables, but do what you gotta do to get that flavor to be top noche💨

[@shannelowe183]

This was a good video, the only problem i have is that there was no mention of health reasons on why a grower should flush. One has to think that what is fed to the plant needs to be flushed so it is not ingested. The flavour comes from the cure process that is with a 58 to 64 percent humidity depending on personal preference for taste. My knowledge is based on experts that teach others how to grow and they all say to flush based strictly on the plant needing to use up any left over nutrients.