To flush or not to flush when changing from veg to flower nutes

ganjarules106

ganjarules106

Well-Known Member
I know a member called BC.trip had posted a thread on this before but i would like a fresh view on this matter. Do you flush before adding flower nutes or just add veg feed for a week or two and then flower nutes thanks. ps growing in soil
 
bird dog

bird dog

Well-Known Member
ganjarules106 said:
I know a member called BC.trip had posted a thread on this before but i would like a fresh view on this matter. Do you flush before adding flower nutes or just add veg feed for a week or two and then flower nutes thanks. ps growing in soil
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LMAO...Why? That makes no sense at all to me and most other experienced grows, like you I assume since you are "well-known" too. In mother nature, they don't have a choice and eat the same stuff all the way through, unless you help on outdoors. I also interject veg feed periodically throughout flower. They still need some nitrogen in flower. In a tent, I change the mh to hps and put my flower nute feed generally into the same feed schedule (twice a week, 6.0 ph'd water in between). IMO - Peace
 
Dr. Who

Dr. Who

Well-Known Member
I NEVER "flush" a soil grow.
NO, there is no need to flush before the nutrient change.
Strain dependent, 2-3 weeks of your veg. formula after the time flip. Most who keep running a veg. nute do so till the stretch is over.
If you run Hesi. STOP using the veg at the flip and change to the bloom right away, as they formulate the N-P-K in the bloom with extra N FOR the stretch period.
 
tyke1973

tyke1973

Well-Known Member
why i use one nute all way through canna a/b but when i did use a two part veg/flower nute i just flipped them over never flushed.

I would advice flushing a few times during a grow though,just not at the change
 
BubbaGumpHemp

BubbaGumpHemp

Well-Known Member
yes i always flush at the end of veg. i stop veg nutes the last week and just feed plain H2O then i add the bloom nutes. this really helps your node spacing and in my personal experience, early bud density. another bennefit is that it allows you to start with a clean slate in flower. you can focus on your flower schedule rather than wondering if any poroblem could be due to any veg nutes still hanging around
 
ganjarules106

ganjarules106

Well-Known Member
thanks for the reply my plant is in veg have just transplanted in to final pot. So a kind of flush to bind the two soils together going to wait for about 4-5 weeks until roots spread out and have taken clones then flipped. Feeding with Formulex and ionic bloom for flower personally I never flushed. But i have had problems with leaves dieing in early flower so was just wondering about the whole flush thing. But I also stop veg nutes and go right in to bloom nutes so that could also be the problem. but going with the flush this time around.
 
jondamon

jondamon

Well-Known Member
ganjarules106 said:
thanks for the reply my plant is in veg have just transplanted in to final pot. So a kind of flush to bind the two soils together going to wait for about 4-5 weeks until roots spread out and have taken clones then flipped. Feeding with Formulex and ionic bloom for flower personally I never flushed. But i have had problems with leaves dieing in early flower so was just wondering about the whole flush thing. But I also stop veg nutes and go right in to bloom nutes so that could also be the problem. but going with the flush this time around.
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IMO just stick with the FORMULEX.

The NPK 2.4-0.9-3.4 IMO is great for flowering with too.

Then if need be you can supplement a little bloom here and there for some added P if required.



J
 
Dr. Who

Dr. Who

Well-Known Member
BubbaGumpHemp said:
yes i always flush at the end of veg. i stop veg nutes the last week and just feed plain H2O then i add the bloom nutes. this really helps your node spacing and in my personal experience, early bud density. another bennefit is that it allows you to start with a clean slate in flower. you can focus on your flower schedule rather than wondering if any poroblem could be due to any veg nutes still hanging around
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I find this as an interesting reply.
To me what your doing is not a "flush".
To me a "flush" is to put multiple times the pot size in gallons of water through it. Don't do that.
"Start from a clean slate", I don't understand how you could get a "problem" from "any veg nutes still hanging around" as many people continue veg feeding into weeks 2-3 of bloom.
In bloom it is the increased P that needs to be watched. Usually from high P bloom foods and unneeded bloom "boosters".
Running straight water for a time does reduce available nutrition from synthetic nutrients. It should reduce the amount of "stored" P and that can be a good thing in the scope of the plant being able to "use" the higher P made available in high P bloom foods. Of course until the plants ability to store and use the P is surpassed by it's availability, thus creating the P tox problems seen all over this site.

At any rate I find your practice as interesting and your observations from this practice the same. I simply wanted to explain just what "flush" means to most of us.

Peace on dude.
 
H

harris hawk

Well-Known Member
ganjarules106 said:
I know a member called BC.trip had posted a thread on this before but i would like a fresh view on this matter. Do you flush before adding flower nutes or just add veg feed for a week or two and then flower nutes thanks. ps growing in soil
Click to expand...
One should "flush" there plants every 4 weeks to prevent "nutrient lock-out and burn" and final flush before harvest should be 2 weeks if growing organic and 4 weeks if growing non-organic (advanced nnutrients, ect)
 
Dr. Who

Dr. Who

Well-Known Member
"Flushing" is for "toilets".
And Coco (IF you get a salt build up problem)..
Flushing soil can be problematic.

"Flushing" for several weeks at the finish is not required. All bad things can be outdone by a complete and careful cure after drying.
When I do some synthetic runs. I always run straight pHed water the last week and a few added days of the run.....no flow through of mass quantities of water that really end up making the plant stressed and overwatered.

For Organic runs. That is where the Rev and I part ways.....I just do the same as for synthetic runs. Water them out.
Same for imbalances in a synthetic run.....Water them out by simply running straight pHed water for a period of time, say a week is the most common amount of time I've used. Then restart feeding with your adjustment to the ratio.

Dumping shit loads of water through the pot causes more stress then good. In soil it will cause pH imbalances that can and will alter the nutrient uptake of the plant in ways that it sometimes will show as lockouts.
It will screw up the living bio's in the soil, sometimes requiring adding new ones and they take a few days to reestablish.

"Flushing" soil is counter productive!!!!!
 
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Cobnobuler

Cobnobuler

Well-Known Member
Dr. Who said:
many people continue veg feeding into weeks 2-3 of bloom.
.
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......If there were just a few key things I learned sine I took up this little endeavor, this was absolutely one of them. Once I started running the veg nutes a few weeks into the start of flower, it straightened out all kinds of problems I had coming down the finish line.It was a critically important bit of knowledge
 
ganjarules106

ganjarules106

Well-Known Member
yes guy i understand what flush means the problem i had be for mite have also been a PH prob because when i checked it it was way high like in the 8-9 area i know you guy are going to say something about this but i got it from this video i normally ph at 6.2 in flower
 
Dr. Who

Dr. Who

Well-Known Member
harris hawk said:
One should "flush" there plants every 4 weeks to prevent "nutrient lock-out and burn" and final flush before harvest should be 2 weeks if growing organic and 4 weeks if growing non-organic (advanced nnutrients, ect)
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I keep looking at this Hawk and just can't shake the compelling urge to directly reply, so as politely as I can. I'll say this.

Why in the world should you flush a soil grow for the last "4" weeks?
Good lord son, your missing what is most likely 2-3 (or 4) of the MOST influential weeks of the plants growth cycle
.
The "BULKING" phase! Weeks 5,6,7 are when your buds get that explosive growth that fills them out and firms them up. Nutrition, Lighting, Temps and Humidity must be maintained as close to optimum as you can for the absolute best results! Small, airy/loose and generally lower overall quality results from inattentive growing practice.

Washing from week 4 or 5 to week 8 or 9 and harvesting will, with out a doubt, leave you with an inferior product!

One last time.
Do NOT "flush" soil grows....Water them out.
 
BubbaGumpHemp

BubbaGumpHemp

Well-Known Member
Dr. Who said:
I find this as an interesting reply.
To me what your doing is not a "flush".
To me a "flush" is to put multiple times the pot size in gallons of water through it. Don't do that.
"Start from a clean slate", I don't understand how you could get a "problem" from "any veg nutes still hanging around" as many people continue veg feeding into weeks 2-3 of bloom.
In bloom it is the increased P that needs to be watched. Usually from high P bloom foods and unneeded bloom "boosters".
Running straight water for a time does reduce available nutrition from synthetic nutrients. It should reduce the amount of "stored" P and that can be a good thing in the scope of the plant being able to "use" the higher P made available in high P bloom foods. Of course until the plants ability to store and use the P is surpassed by it's availability, thus creating the P tox problems seen all over this site.

At any rate I find your practice as interesting and your observations from this practice the same. I simply wanted to explain just what "flush" means to most of us.

Peace on dude.
Click to expand...
your correct, and i do a "flush" as i make the flip. i use 7 gal containers so i run about 15 gal through each pot. i say to start with a clean slate because i know that many people that aren't experienced growers will have a tendency to over feed. saying how most bloom schedules have a good bit of N to them, especially when u get into adding cal mag and all that stuff which has even more N in it. a lot of new growers have overabundance of N when the switch is made. flushing simply allows you to focus on what your feeding atm and not worry about if there is N salt built up from the veg (also depends on how long veg is for, mine is usually 2-3 months so thats a lot of time to get salt build up for me) but there are multiple ways to skin a cat i suppose lol works great for me and is the only way i do it. once i began doing this my node spacing improved drastically as well as a slight density increase in buds. i even take flushing to the next level, every time i water or feed i ALWAYS use a lot of solution. if i feed, i mix 5 gal for each 7 gal pot. when i just water, i water with no less than the container volume so 7 gal pot i wont use less than 7 gal of H2O. i am on a water feed water schedule and do this each and every time. is it a complete pain in the ass? yes. is it worth it? absolutely. i agree with Dr. Who in a way. i don't like washing all the nute out completely in flower but i like to flush, even with fertilizer in the water, every time to get salt out and fresh nutes in as to not ever let the plants set in salty medium but have fresh nutes to work with every feeding
 
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