How to flush coco pre-harvest?

[puff adder]

I cut the nitrogen out around week 5, and the leaves yellow up even before I flush. Undergrowth is almost white or super light in color.

My "flush" is a dilute feed mix at first, then just feedings of PH'd water for the last week or 2.

After doing this, I noticed that the salt buildups that usually collect around the insides of the pots and catch trays are gone, making it so I don't have to scrub the pots and trays for the next go-round.

 

[bud lover]

i asked the same sort of question on the old growers forum because on the canna nute chart it says in the last week or 2 that i should just give them cannazym and boost i was told that as long as they dont contain any N that it should be ok. the cannazym and boost only produce sugars that the plant absorbes so giving the plant its full flavour without any harshness. my flush starts tommorrow so fingers crossed.
good luck and i hope this helps

 

[reddy1]

carl carlson-in previous runs i cut out cal/mag after 1 month in flower, then nothing but tiger bloom 2-8-4 for 2-3 weeks, then flush for 2-3 weeks, most fans leafs were wilted and gone but lots of green in the shaded parts. now i'm on my first run of Rezcipe GH 6/9, going to zero N 9ml bloom for the remainder. i'm curious to see the difference.

gaiusmarius-i'm going to try to put lots of water through at the start instead of the gradual decrease in nutrient availability like i've done in the past. i pretty much agree with everything you just said. so convinced i'm going to try it your way this run. couldn't hurt to find out right. i've been running the same strain for a few years and it's gets a little better each time. learning is awesome.

bud lover-i've used cannazyme and molasses in the early flush period, i have no idea if it makes a better product.

 

[EddieShoestring]

Does the nutrient feeding schedule that you follow call for Nitrogen to be dropped completely or cut down at any time in bloom and if so, do this ever result in leaves yellowing?

this run i have dropped nearly all N (ie canna a&b) at around 3 weeks 12/12-when buds had started to grow. This has resulted in alot of yellowing of the lower fan leaves but the buds have been growing at an impressive rate. It is week 6 now and i've just started adding GH Ripen tonight-this product causes severe yellowing on otherwise green plants-so in 2weeks time i imagine there won't be much chlorophy left in that growroom.
cheers
eddieS

 

[Carl Carlson]

So eddieshoestring just to be clear, you were using the Canna Pk 13/14 only from week 3 on?

What is the N-P-K for GH Ripen? They don't sell it in the U.S.

I did try the Botanicare CNS-17 Ripe once, which is 1-5-4. Don't know whether it was human error or liquid error, but the results were not enjoyable.

 

[EddieShoestring]

So eddieshoestring just to be clear, you were using the Canna Pk 13/14 only from week 3 on?

not exactly-
in week 4 they had biobizz biobloom (8-2-6), an organic soil fert, and seaweed extract
in week 5 they had a couple of doses of pk boost (ionic boost) and seaweed
in week 6 they had plain water
now it's week 7 and they are on the Ripen (0-5-6)

Ripen is General Hydroponics-i thought that their nutes were available in the USA-could be wrong though

cheers
eddieS

 

[Carl Carlson]

Eddie, Ripen is a product they don't sell in the U.S. It's very strange.

I've got a single plant (among others) blooming in coco right now, finishing up that is, and am doing my usual thing which is based similar to what others do.

This plant was fed GH nutes, so a 3/9 ratio during the last few weeks (I don't like to cut N completely) and a switch to plain water when trich heads rounded into shape. Tap water has a very small amount of nutrients and after just two days of flushing the EC of the coco was down to practically nothing, so we'll see. Leaves are slight yellowing. I also like to chill the air temp. down to about 60 degrees (lowest) during the lights off period at the very end because it causes a little bit of stress and brings out some nice colors.

 

[redheadfreakin]

Ripen = Koolbloom

 

[reddy1]

soma does a long flush too. 1st and 3rd indica and sativa breeders cup

Greetings All.......this year I entered one of my Old favorites Lavender....totally Organic.......And another Amnesia Haze.......Organic and flushed for 3 weeks.........and Somantra water hash.........Full melt........head rush............there is a lot more happening than the Icelandic Volcano..........Keep it GREEN........Soma

 

[Carl Carlson]

what was soma's medium?

 

[EddieShoestring]

what was soma's medium?

dreadlocks?

this is the 'to flush or not to flush' routine-we won't resolve it. No one ever does.

 

[Carl Carlson]

if you meant it's a routine like I'm being a wise guy, I'm not on this thread anyways.

It seems that what might work best in most instances in soil is going to be different for unbuffered and totally fed by liquid coco, which is my medium of choice at this time. Like I said in this latest grow I used a little bit of N throughout bloom and it took only two days for yellowing to commence and the EC of the coco to drop down basically to zero. P is easily leeched as well in small container grows.

One of the problems is that unless you trust the marketing of Advanced Nutrients, we don't have labs working to find the best flushing formula.

 

[EddieShoestring]

if you meant it's a routine like I'm being a wise guy,/QUOTE]

not at all , Carl,
what i meant was that there have been a few 'how long to flush, whether to flush etc' threads over the past few years-the problem is that there is no objective way to compare things like taste. So you get some growers insisting on a 3week long flush or their bud tastes chemmy and horrible-and you get others who feed right up to the chop and insist that their bud is good. all in coir.

I have tried a long period (over 2 weeks) feeding coir just plain water before the chop-i've also ran Ripen at ec 1.8 right up to the day before the chop....and couldn't notice any difference in the taste.

don't mean to close down the debate though
cheers
eddieS