Growing autos organically please help

Juststarter101 · May 8, 2025

Hi, Guys
I’ve really been thinking of setting up autos to grow organically instead of worrying about nutrients/ to much/to less when to add, burns deficiencies etc

Looking into this myself I’m trying to understand the ratio, etc looking to do 3 autos at a time.

What blend would people recommend, I’m assuming just water at feeding until cycle is finished?

I was going to use Organic soil Worm castings Bat manure Ground kelp A little bit of coco coir Maybe add a little bone+blood meals

Sould I leave mix to settle for a couple weeks before use?

Was looking to go Organic, using R/O water just add a bit of cal-mag check ph 5.5-6PH feed every 2/3 days-when the plants need it.

Will this be sufficient for my auto plants?? Anything to add? What ratio would be best?

Does anyone know if this will work and produce well, if it will be enough for autos.

Start of flowering was going to add either a bud booster or enhancer.

Plan to try and keep humidity from the start to end veg humidity 60/70% adding co2 until end veg/beginning of flower with a ppfd 600ish

Flower removing as much co2 Humidity 40/50% Ppfd 800-1000

Sorry guys a slight break down, anything I should add or change? Could I expect to yield something from this.

Plan on using 2X4 tent Spider farmer SE4500evo light Vivosun 6” Carbon fan with E42 remote, compatible with spider farmer through RJ11 cable. A couple of oscillating fans Intake 4” fan at the bottom of the tent, no carbon filter, I don’t want to contaminate.

Does anyone have a similar setup and has been proven well any help would be really appreciated. Newbie here setup not up yet. Trying to fill wilth knowledge.

Thanks guys

RoadKillSkunkHunt · May 8, 2025

Just curious, what is your reason for considering coco as your medium? Here's why I ask, coco works very well with nutrient salts. It's easier than you think if your fear is burning your plants. Don't get me wrong, people do manage to use coco for organic grows ... however if it were me, I would use something like Roots Organic Lush or Fox Farm's Ocean Forest if you want to grow organically.

One word about organic grows. It's a timing game. If you don't time the breakdown of nutrients properly, your plants may show signs of deficiencies. When I first started growing, I was an organic grower only. Now? I'm running salts based nutrients every grow. My reason why is because it's easier to time your nutrient delivery based on different plant stages and also because my yields are quite a bit larger.

The above is simply my opinion. Nutrient Salts vs Organics is an ongoing debate. Neither is wrong. Pick what way you want to grow and run with it.

Eledin · May 8, 2025

Going full organic ammendments with autos is risky. Autos are very picky with the nutrients, at first they can get easily burned, then when they stretch they want more food and for fattening. Since they are autos Im assuming no transplant? Because if you plant autos from seed in a soil that is too hot they will have problems. What strain is it? For autos I ammend the soil slightly and then continue with organic liquid fertilizers. Minerals as mentioned by @RoadKillSkunkHunt are absorved quicker meaning you can read and fix your plants faster, while in organic youre feeding the microbes in the soil that then feed the plants. Certainly is less likely that you will burn them with organic nutrients but if you do there's no turning back, flushing wont be as effective unless you flush a lot and then you will have to repopulate it with microbes and wait for the organic matter to decompose and can create deficiencies.
The set up is quite nice, better than mine hahaha. Do you have a balanced NPK with those ammendments? I ask because depending on the brand the same ammendment like kelp meal can have a different NPK.

Galgrows · May 8, 2025

Don't over complicate your first grow learn with good soil mixes fox farm simple nutes you really don't need 12 different bottles. And i do not recommend growing autos if it's the first time you've grown weed. Get a fem. photo they handle fumbles better.

JIMKSI64 · May 8, 2025

I am Trying apple fritter autos right now in a 4x4. 2 weeks in. 75/25 happy frog and ocean forest with perlite.
I ran same soil for photo White widow cept 50-50 ratio and delivered 7.5 oz with trim from 2 plants in a small tent

An organic grow using organic nutes is very self regulating. The biome converts natural product into useable nutrition in plants. If lights are lower or the vdp is off the biome regulates the feed. The pots have enough for about 4 weeks and at week 3 veg I top dress with EWC and a soil conditioner also made by fox farms. It hits all the marks with a nice Humic Acid load to recharge the biome. At flower I am using a fish poop based 3 part liquid called foop. Foop like most pour nutes require pH balancing as the carb component ( sugar ) drives down pH bigly.
Edit
I also hate autos and will go back to photos. And mistake ( mine was gnants ) slows plant development where the yield suffer. In photo you just extend the veg.

RoadKillSkunkHunt · May 8, 2025

Galgrows said:
Don't over complicate your first grow learn with good soil mixes fox farm simple nutes you really don't need 12 different bottles. And i do not recommend growing autos if it's the first time you've grown weed. Get a fem. photo they handle fumbles better.

My opinion ... take it for what its worth ... Only grow autos outdoors ... and only if you're growing in a more northern location that would be a struggle to finish a photoperiod plant. A modern auto flower plant makes a great short summer cultivar outdoors.

Smokie08 · May 8, 2025

Juststarter101 said:
Hi, Guys
I’ve really been thinking of setting up autos to grow organically instead of worrying about nutrients/ to much/to less when to add, burns deficiencies etc

Looking into this myself I’m trying to understand the ratio, etc looking to do 3 autos at a time.

What blend would people recommend, I’m assuming just water at feeding until cycle is finished?

I was going to use Organic soil Worm castings Bat manure Ground kelp A little bit of coco coir Maybe add a little bone+blood meals

Sould I leave mix to settle for a couple weeks before use?

Was looking to go Organic, using R/O water just add a bit of cal-mag check ph 5.5-6PH feed every 2/3 days-when the plants need it.

Will this be sufficient for my auto plants?? Anything to add? What ratio would be best?

Does anyone know if this will work and produce well, if it will be enough for autos.

Start of flowering was going to add either a bud booster or enhancer.

Plan to try and keep humidity from the start to end veg humidity 60/70% adding co2 until end veg/beginning of flower with a ppfd 600ish

Flower removing as much co2 Humidity 40/50% Ppfd 800-1000

Sorry guys a slight break down, anything I should add or change? Could I expect to yield something from this.

Plan on using 2X4 tent Spider farmer SE4500evo light Vivosun 6” Carbon fan with E42 remote, compatible with spider farmer through RJ11 cable. A couple of oscillating fans Intake 4” fan at the bottom of the tent, no carbon filter, I don’t want to contaminate.

Does anyone have a similar setup and has been proven well any help would be really appreciated. Newbie here setup not up yet. Trying to fill wilth knowledge.

Thanks guys

Smokie08 · May 8, 2025

That’s all I’ve used growing 4 autos atm the only thing I’ve found is they get thirsty.. let mine dry back to far but they growing good now

Eledin · May 8, 2025

Using a premade blend for weed is always a safe bet. I personally have all the components separately but Ive been growing for more than 10 years and I know how much will burn my autos or my photos and what ratios I should use. If youre new, its gonna be too much. I still remember my first or one of my first grows, I wanted to feed them all with organic supplements made by me, needless to say I fucked them up so bad that I had to buy nutrients in a hurry before I killed them. Also yes, photoperiodic plants are more forgiving and you can give longer veg time to compensate if anything goes wrong. Autos are good for outdoors I agree, and if you wanna save a couple of weeks at most, but unless you need it fast its not worth it yield wise.

RoadKillSkunkHunt · May 8, 2025

Eledin said:
Using a premade blend for weed is always a safe bet. I personally have all the components separately but Ive been growing for more than 10 years and I know how much will burn my autos or my photos and what ratios I should use. If youre new, its gonna be too much. I still remember my first or one of my first grows, I wanted to feed them all with organic supplements made by me, needless to say I fucked them up so bad that I had to buy nutrients in a hurry before I killed them. Also yes, photoperiodic plants are more forgiving and you can give longer veg time to compensate if anything goes wrong. Autos are good for outdoors I agree, and if you wanna save a couple of weeks at most, but unless you need it fast its not worth it yield wise.

In my area, autos are the only type of cannabis that you can guarantee will finish in a shorter summer. People do grow photos here with varying degrees of success. Usually there's luck involved even with the most skillful grower because of the cool wet nights come September with every night hitting the dew point.

I'm more concerned about a new grower trying to grow organically in COCO. It's an inert media. People do it but its not something I would recommend to a new grower. I'd rather see a new grower have a good chance of success. For that, I would recommend Fox Farm's Ocean Forest or Roots Organic Lush. I can see some success with that approach.

Eledin · May 8, 2025

Look, I happen to be runing autos right now because I wanna build a hash stash quickly. I have fed them 3 times only and the soil is slightly ammended by me, little bit more than a regular seed mix soil but with more buffers. The thin one on the far right has eaten 5 times and is still hungry. Many times you will have to personalize feeding for 1 or more plants in your grow.

Eledin · May 8, 2025

RoadKillSkunkHunt said:
In my area, autos are the only type of cannabis that you can guarantee will finish in a shorter summer. People do grow photos here with varying degrees of success. Usually there's luck involved even with the most skillful grower because of the cool wet nights come September with every night hitting the dew point.

I'm more concerned about a new grower trying to grow organically in COCO. It's an inert media. People do it but its not something I would recommend to a new grower. I'd rather see a new grower have a good chance of success. For that, I would recommend Fox Farm's Ocean Forest or Roots Organic Lush. I can see some success with that approach.

I think he meant to say he is gonna add a little bit of coco to a compost based soil, for areation, or maybe I got it wrong.
"little bit of coco coir"

RoadKillSkunkHunt · May 8, 2025

Eledin said:
I think he meant to say he is gonna add a little bit of coco to a compost based soil, for areation, or maybe I got it wrong.
"little bit of coco coir"

Maybe I got it wrong too. I would use perlite, not coco but that's me.

I would recommend growing in coco if the OP would consider synthetic nutes. On the other side of things, if its a commercial potting soil mix that is being used, don't add coco. It's already been calibrated at the manufacturer.

It would be an unknown for me adding coco to a home made compost based soil mix.

Eledin · May 8, 2025

I do it! And I know a couple of brands that do it too, covercrop, top crop, canna terra, atami...
I also add perlite, vermiculite (might seem like a contradiction because they have the opposite effect when it comes to retaining water but vermiculite is a good nute buffer because it attaches possitively charged ions) arlite and... thats it, mostly peat.
The key is using high porosity coco, then you have the effect you want. If you get cheap coco its very dusty and doesnt help much and retains salts if you give dry periods.

Eledin · May 8, 2025

Also you only wanna add like 10% of the total volume, with perlite you can go higher I can see why you would just use only perlite but coco buffers nutes better than perlite.

RoadKillSkunkHunt · May 8, 2025

Eledin said:
I do it! And I know a couple of brands that do it too, covercrop, top crop, canna terra, atami...
I also add perlite, vermiculite (might seem like a contradiction because they have the opposite effect when it comes to retaining water but vermiculite is a good nute buffer because it attaches possitively charged ions) arlite and... thats it, mostly peat.
The key is using high porosity coco, then you have the effect you want. If you get cheap coco its very dusty and doesnt help much and retains salts if you give dry periods.

I grow in Ocean Forest. The manufacturer adds some coco. I believe with their research and development team and their quality control team, they would have better results without me screwing it up. I add a bit more perlite and nothing more because I find its already calibrated.

Eledin · May 8, 2025

RoadKillSkunkHunt said:
I grow in Ocean Forest. The manufacturer adds some coco. I believe with their research and development team and their quality control team, they would have better results without me screwing it up. I add a bit more perlite and nothing more because I find its already calibrated.

You cant go wrong with a reputable brand thats for sure! Its just that I had problems in terms of drying. The highest perlite substrate in the market is biobizz with 30% perlite but then I thought man, thats a lot of money for some peat with a lot of perlite. I live in a very high humidity area, even with coco I had problems. So one day I decided to make my own, which is way cheaper. Packs of 20 liters of perlite and vermiculite go for 3 euros or so here, biobizz light mix goes for 16 euros 50 liters of 30% perlite... Same goes for arlite, 50 liters of arlite for about 10 euros. Then I decided to create super soil, but that requires more practice and way more calculations.

RoadKillSkunkHunt · May 8, 2025

Eledin said:
You cant go wrong with a reputable brand thats for sure! Its just that I had problems in terms of drying. The highest perlite substrate in the market is biobizz with 30% perlite but then I thought man, thats a lot of money for some peat with a lot of perlite. I live in a very high humidity area, even with coco I had problems. So one day I decided to make my own, which is way cheaper. Packs of 20 liters of perlite and vermiculite go for 3 euros or so here, biobizz light mix goes for 16 euros 20 liters of 30% perlite... Same goes for arlite, 50 liters of arlite for about 10 euros. Then I decided to create super soil, but that requires more practice and way more calculations.

There's two sides to this .... I'm all for an experienced grower making changes based on their observations and experiences. I would put you in that category because you had been growing for a while when you made that shift. The other side is the new grower. The new grower is already under information over-load trying to process everything. I think the KISS approach is best for someone who has never grown before. That would be:

1) reputable brand potting mix left essentially unchanged.
2) simple 2 or 3 part salts based nutrient routine
3) focus on controlling the environment

After that, it becomes easier to suggest things because the grower has some experience and at the very least knows how to get a plant from seed to harvest successfully.

Eledin · May 8, 2025

Agreed, like I said I almost kill my plants trying to go with ammendments when I didnt even know how to grow yet and mine were photo, had they been autos they would have probably died.
If you go with organic liquids there's supplements that you need, and microorganisms... with salt based nutes you dont necessarily need any supplement. Its cheaper, effective and simple. Epsom salts once a month helps dissolve any possible accumulated salts in the substrate too, but never use them while feeding because the salts will become available nutes, plus what youre feeding, you can burn them.

Growing autos organically please help

Growing autos organically please help

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Eledin

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