flush/harvest question

Mobileaudio25

Active Member
Running 4 new strains this run and this is my first attempt with coco (canna). First run is going pretty well with it trying to figure out if I started flushing too early.

I'm at day 57 from flip to 12/12. I know its strain dependent but Dont most people harvest around day 60-68? Is this 60-68 from the time preflowers start or from flip?

I started flushing at day 53 from flip and I'm debating whether or not to go another week. I Dont see any red trichromes yet.

Do you guys normally harvest 65 days from flip or after first sign of sex so more around 72-75days from flip again depending on strain.
 

Dr. Neb

Member
If they are that far into flower you should have a pretty good idea if they are sativa dominant or indica dominant so that should give you a better Idea.
 

Mobileaudio25

Active Member
If they are that far into flower you should have a pretty good idea if they are sativa dominant or indica dominant so that should give you a better Idea.
They are both indica Dom. I just Dont want to be flushing a week too early...

Do you normally cut at first sign of amber which is around 63 days after flip or first sign of flower? 7-10 days after flip
 

kali kid greenthumb

Well-Known Member
From what I learned flushing is for truly hydroponics even though coco is considered Hydro in some sense. You need those nutrients to finish your plants up, I flush with molasses and kelp for the last week because I have microbes which provides them energy to use up all the nutrients thats left(flushing). I stopped harvesting based on days or weeks I look at the trichomes and the first sight of amber is when I usually harvest but I definitely wait until I see 80% cloudy before I think about flushing. Its not really recommended to flush coco with plain water unless you have a "major" nutrient issue even then its advisable to flush with 1/4 strength base nutrient and cal-mag.
 

Yodaweed

Well-Known Member
From what I learned flushing is for truly hydroponics even though coco is considered Hydro in some sense. You need those nutrients to finish your plants up, I flush with molasses and kelp for the last week because I have microbes which provides them energy to use up all the nutrients thats left(flushing). I stopped harvesting based on days or weeks I look at the trichomes and the first sight of amber is when I usually harvest but I definitely wait until I see 80% cloudy before I think about flushing. Its not really recommended to flush coco with plain water unless you have a "major" nutrient issue even then its advisable to flush with 1/4 strength base nutrient and cal-mag.
Really? Cause I always flush my coco with a flushing agent then give my plants 36 hours of darkness before harvest and noticed a huge difference in tric development and taste.
 

kali kid greenthumb

Well-Known Member
Really? Cause I always flush my coco with a flushing agent then give my plants 36 hours of darkness before harvest and noticed a huge difference in tric development and taste.
Okay so how long do you flush and whats in the flushing agent ? And I have yet to find actual data stating that the darkness during the last days even work. Also there are forums on RIU talking about flushing and how its unnecessary which makes sense once you understand the way the nutrients actually move though the plants.

In hydroponic mediums (from rock-wool to pebbles to coco fiber) the flushing process is easier to implement, because there is a higher degree of drainage. The texture of hydroponic medium favors flushing, and it is also more necessary than in earth.
When flushing hydroponic medium, it is very important to be exact with the values of the flushing solution. EC, temperature and quantity are very important factors. The EC of the flushing solution must be high enough for the salts to bind with the solution, but not as high as to form more salts. The ideal values are between 0.9 and 1.1.
-strain hunters Franco's tricks on flushing medium-

This was a answer to a question asked on the Canna website :
ANSER: No, bring the pH up a bit to 5.6, then DO NOT water coco with plain water, it wipes out the buffer and along with your lower pH ranges forces the availability of potassium upwards which is probably where the burn is coming from. So only water with nutrients all the time.

Here is a discussion on RIU
https://www.rollitup.org/t/proper-coco-flush.662471/

And for kicks look up the book Teaming with Nutrients that will explain how it all works and the main reason I don't flush anymore. Just trying to get the right info out there
 

Yodaweed

Well-Known Member
Okay so how long do you flush and whats in the flushing agent ? And I have yet to find actual data stating that the darkness during the last days even work. Also there are forums on RIU talking about flushing and how its unnecessary which makes sense once you understand the way the nutrients actually move though the plants.

In hydroponic mediums (from rock-wool to pebbles to coco fiber) the flushing process is easier to implement, because there is a higher degree of drainage. The texture of hydroponic medium favors flushing, and it is also more necessary than in earth.
When flushing hydroponic medium, it is very important to be exact with the values of the flushing solution. EC, temperature and quantity are very important factors. The EC of the flushing solution must be high enough for the salts to bind with the solution, but not as high as to form more salts. The ideal values are between 0.9 and 1.1.
-strain hunters Franco's tricks on flushing medium-

This was a answer to a question asked on the Canna website :
ANSER: No, bring the pH up a bit to 5.6, then DO NOT water coco with plain water, it wipes out the buffer and along with your lower pH ranges forces the availability of potassium upwards which is probably where the burn is coming from. So only water with nutrients all the time.

Here is a discussion on RIU
https://www.rollitup.org/t/proper-coco-flush.662471/

And for kicks look up the book Teaming with Nutrients that will explain how it all works and the main reason I don't flush anymore. Just trying to get the right info out there

In the 1970s, Dr Carleton Turner at the University of Mississippi found that there was a variation in the amount of THC in a sample, depending upon the time that the plant was taken. The most potent point was just before dawn after nighttime darkness.

Then, in 2000, Dr Paul Mahlberg of Indiana University showed that THC was produced extracellularly, on the inside of the glandular membrane, which would allow for its daily recycling.
The idea of using a dark period to increase THC before harvest warrants some investigation. An extended dark period right before harvest might very well increase THC content.


SOURCE:

http://www.cannabisculture.com/articles/2570.html
 

Yodaweed

Well-Known Member
Okay so how long do you flush and whats in the flushing agent ? And I have yet to find actual data stating that the darkness during the last days even work. Also there are forums on RIU talking about flushing and how its unnecessary which makes sense once you understand the way the nutrients actually move though the plants.

In hydroponic mediums (from rock-wool to pebbles to coco fiber) the flushing process is easier to implement, because there is a higher degree of drainage. The texture of hydroponic medium favors flushing, and it is also more necessary than in earth.
When flushing hydroponic medium, it is very important to be exact with the values of the flushing solution. EC, temperature and quantity are very important factors. The EC of the flushing solution must be high enough for the salts to bind with the solution, but not as high as to form more salts. The ideal values are between 0.9 and 1.1.
-strain hunters Franco's tricks on flushing medium-

This was a answer to a question asked on the Canna website :
ANSER: No, bring the pH up a bit to 5.6, then DO NOT water coco with plain water, it wipes out the buffer and along with your lower pH ranges forces the availability of potassium upwards which is probably where the burn is coming from. So only water with nutrients all the time.

Here is a discussion on RIU
https://www.rollitup.org/t/proper-coco-flush.662471/

And for kicks look up the book Teaming with Nutrients that will explain how it all works and the main reason I don't flush anymore. Just trying to get the right info out there
I use florakleen to flush my plants, 10ml per gallon and water until 20-40% run off.
 

kali kid greenthumb

Well-Known Member
In the 1970s, Dr Carleton Turner at the University of Mississippi found that there was a variation in the amount of THC in a sample, depending upon the time that the plant was taken. The most potent point was just before dawn after nighttime darkness.

Then, in 2000, Dr Paul Mahlberg of Indiana University showed that THC was produced extracellularly, on the inside of the glandular membrane, which would allow for its daily recycling.
The idea of using a dark period to increase THC before harvest warrants some investigation. An extended dark period right before harvest might very well increase THC content.


SOURCE:

http://www.cannabisculture.com/articles/2570.html
This article doesn't really prove it works, He said words like "warrants some investigation" and "might very well increase thc". Also in the first sentence he is clearly talking about when the plant is being taken in the dark the thc level is higher then when taking it in the day he states nothing about leaving the plant in darkness for 36 hours.
 

Yodaweed

Well-Known Member
This article doesn't really prove it works, He said words like "warrants some investigation" and "might very well increase thc". Also in the first sentence he is clearly talking about when the plant is being taken in the dark the thc level is higher then when taking it in the day he states nothing about leaving the plant in darkness for 36 hours.
I provided evidence to back up my claims where is your proof? Seems like you have none and speak based off your opinion, something I care little about.
 

kali kid greenthumb

Well-Known Member
I provided evidence to back up my claims where is your proof? Seems like you have none and speak based off your opinion, something I care little about.
I provided 3 sources above about flushing above guess you missed that ,and your proof again did not state leaving the plants in the dark for 36hours it states that when you "take" the plant in the dark opposed to daytime there is an increase in thc content. Slow down before you read something and see what the person is actually saying!

Everyone has their own beliefs on how to grow why don't you test for yourself like I did, I have done a 1 week flush,2 week flush ,and molasses and kelp flush for 1 week sometimes 5 days. I find the plain water flush for 1-2weeks causes yellowing quicker and the weight and bud development was not the same because it seems like the branches couldn't pack on weight(plant is eating its reserves to stay alive instead of bud development). As far as taste and smell the kelp and molasses flush seems to be a winner and the weight was a couple oz more so yea try yourself and see.
 

thenotsoesoteric

Well-Known Member
I must admit, I was once someone who thought flushing worked. Then I researched and learned how to grow properly. If flushing helps the taste of your final product, then you were/are over fertilizing your plants during bloom i.e. ppms in and over 1200ish mark, maybe even lower with many strains. If you never over fertilize your plants in hydro then there is no need to flush.

I base the need not to flush on the fact that I could not find one single scholarly report/experiment where researchers flushed any edible product. In fact there is a very in depth report by a University in New Zealand where they even use powdered Scott's brand fertilizers with excellent results, and not one mention of flushing. Same with tobacco, corn, apples, carrots farmers.....you should get the point by now.

Plus, I've tried both flushing and not flushing and no difference.
 

Yodaweed

Well-Known Member
Trust me I have grown both ways and flushing makes for a less harsh product, there is a reason nutrient companies recommend a week flush and provide flushing agents , it wouldn't help their pocket book for them to tell you to stop using their nutrients for a week so there is a reason you flush, to leach the excess nutrients out of the soil. And that 2 week water only flush is for soil plants not coco, coco you do a fast flush with a flushing agent , then harvest. You grow your way and I will grow mine and you still haven't provided ANY sources you linked a rollitup forum post that is not a source that is someone opinion on the internet.
 

Yodaweed

Well-Known Member
I must admit, I was once someone who thought flushing worked. Then I researched and learned how to grow properly. If flushing helps the taste of your final product, then you were/are over fertilizing your plants during bloom i.e. ppms in and over 1200ish mark, maybe even lower with many strains. If you never over fertilize your plants in hydro then there is no need to flush.

I base the need not to flush on the fact that I could not find one single scholarly report/experiment where researchers flushed any edible product. In fact there is a very in depth report by a University in New Zealand where they even use powdered Scott's brand fertilizers with excellent results, and not one mention of flushing. Same with tobacco, corn, apples, carrots farmers.....you should get the point by now.

Plus, I've tried both flushing and not flushing and no difference.
I live in Colorado weed is legal here, I ask the dispensaries that have the best fire buds and they flush, they must not know how to grow too then even tho they are raking in millions and grow in 30,000 square foot warehouses?? Oh yeah you novices on the internet know more about growing then them. They invested millions have horticultural degrees but you guys know more because of a rollitup forum post I forgot...what idiots. I am personal friends with some of the best growers in Colorado I even have met some of the best breeders in the world but then again they all must be wrong.
 

chuck estevez

Well-Known Member
I live in Colorado weed is legal here, I ask the dispensaries that have the best fire buds and they flush, they must not know how to grow too then even tho they are raking in millions and grow in 30,000 square foot warehouses?? Oh yeah you novices on the internet know more about growing then them. They invested millions have horticultural degrees but you guys know more because of a rollitup forum post I forgot...what idiots. I am personal friends with some of the best growers in Colorado I even have met some of the best breeders in the world but then again they all must be wrong.
you sound like a HUGE idiot with your reasoning why flushing is good, just sayin
 
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