Need some advice on feeding Coco coir with gh flora series.

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Smokeytit90

Active Member
Think I'm going to grow in coco coir and perlite my next grow .

I use General hydroponics flora series nutes

I've never used coco but I assume I should be feeding from day 1.

Should I start at 1/4 or 1/2 of the label guidelines . Although they do have guidelines for coco.

Also since coco dries out alot faster.

Say I feed nutes once a week . Is it likely I will be feeding nutes once and watering once a week
 
S

Smokeytit90

Active Member
Skillcraft said:
I grow in coco and you must feed daily. When my plants are small I feed once a day but when they get bigger I feed 2-3 times daily. Right now I am currently feeding mine 3 times daily and they are at day 59 of flower.View attachment 4957614
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Nice!

So you feed water and nutes x3 a day ( ie make up a ....litre solution and divide it up)

How much water do you usually start and finish with that gets you up to 3 times a day ?
 
curious2garden

curious2garden

Well-Known Mod
Staff member
Smokeytit90 said:
Think I'm going to grow in coco coir and perlite my next grow .

I use General hydroponics flora series nutes

I've never used coco but I assume I should be feeding from day 1.

Should I start at 1/4 or 1/2 of the label guidelines . Although they do have guidelines for coco.

Also since coco dries out alot faster.

Say I feed nutes once a week . Is it likely I will be feeding nutes once and watering once a week
Click to expand...
I run coco/perlite 50/50 and GH Flora trio. I start my seeds in Jiffy Pellets (because easy and I'm lazy). I up pot them to pint pots as soon as they germinate and I put them under a T5 before their final move to 2 gallon pots I finish them in.

I soak the pellets with tap water (with chlorine) and after they germ I water with tap water until they go a little lighter green. I never allow the coco to dry out. Somewhere in the 7-14 days period I begin feeding with around a 200 PPM solution as recommended in their old drain to waste table.

I use this table and mix then I dilute with water until I achieve the PPM I want and finally I pH the mix and test again at or after 24 hours when the bounce up stops. I pH to 5.8 for final feeding and allow it to swing to 6.1. I hope that helps.

I only use the trio (no kool or florlicious) I also use CaliMagic and a Si additive in veg.

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F

Forage

Well-Known Member
If you wanna make it harder than it needs to be, I'm your guy.

Once the roots are established, water them when they need it. This is the guideline I use from the Canna website:

There is an easier and cheaper way to determine the amount of water available to your plants. Determine plant available water weight by thoroughly watering a container with plant and coco and weighing it after drain. Allow the plants to dry down until they reach wilt point and weigh again. The difference in weight is the available plant water. When 50 - 70% of this amount is used from the container, it is time to apply water again. It is never good to wilt a plant but an experimental plant might be in order. If plain water is used on established coco, the buffer will be upset and the next issue surface.

The one time I wilted a plant to try it, I think it wilted at around a 70% loss in saturated net coco weight. And the range to water it worked out to about a loss of 1/3 to 1/2 of the saturated net coco weight. I don't weight my plants every time, I weight them after first potting and saturating, subtract the weight of the pot, and then subtract another 5% because after a few waterings the coco settles a bit and holds less water. When I water I know that the plant should hold onto about 1/3 to 1/2 of that saturated net coco weight, and the runoff should be about 20% of what I put in.

In my next TED talk I'll explain how to set up an Excel spreadsheet to track when all the batteries in your house need to be recharged.
 
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Moonmanyyc

Active Member
I feed two times a day full notes and had the best growth I’ve ever seen. It’s called fertigation keep your coco wet at all times and you will see the difference with 20-25% runoff,I will never grow any other way period. DTW is easy no cleaning no nothing till you crop out. Oh I do defoliation at a week before flip then day 21 and day 42 of flower. Just fill the 26 gallon Rez and good for 12 days.
 
medidedicated

medidedicated

Well-Known Member
I dont follow charts just now realizing I been reading the plants just not that well. Just as I was starting to get beautiful growth like wow when I see it Im like damn I almost had it! Then had to switch to fabric pots with low rh and box fans so they dry a lot now so I think I need to light feed meaning lower ec but more feeds per day.

Too much dryback will have plants looking like mine. Included my more healthy looking plants too.

As for starting seedlings I just add them to my normal feed for veg plants 1.7ec which is still a good ec for those conditions fed 3x a day.

People always comparing to nature like when do you see paper towel method in nature or things like that. What about seedlings? When they fall in the ground do they fall into low ppm medium? Just curious your thoughts on that.

I dont plant my clones or seedlings in those ec I just go right to 1.7ec. I may need to lower it for flower going into 8x a day fed as I found if you do so unnessicarily it will become overfed. Its needed now though as you can see.
 

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AK-Frost

Well-Known Member
medidedicated said:
I dont follow charts just now realizing I been reading the plants just not that well. Just as I was starting to get beautiful growth like wow when I see it Im like damn I almost had it! Then had to switch to fabric pots with low rh and box fans so they dry a lot now so I think I need to light feed meaning lower ec but more feeds per day.

Too much dryback will have plants looking like mine. Included my more healthy looking plants too.

As for starting seedlings I just add them to my normal feed for veg plants 1.7ec which is still a good ec for those conditions fed 3x a day.

People always comparing to nature like when do you see paper towel method in nature or things like that. What about seedlings? When they fall in the ground do they fall into low ppm medium? Just curious your thoughts on that.

I dont plant my clones or seedlings in those ec I just go right to 1.7ec. I may need to lower it for flower going into 8x a day fed as I found if you do so unnessicarily it will become overfed. Its needed now though as you can see.
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Yes, I would always recommend lower ec values and more fertigation intervals. Careful with heavy drybacks as it’ll spike your ec and dump your ph low in the pot. I would follow the feed chart I shared above. It’s simple, uses way less nutes and your plants will be happy
 
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