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Mixing Soil With Coco And Perlite. Ph? Proportions?

AlbaNinja84

Some of my plants germinated in very small soil cups. 8 Plants.
Have some coco coir left.
I wanted to test only on one plant if adding coco coir would work better.

What percentage coco/perlite/soil, should I use? Was thinking 30%coco 30% perlite 40% soil
What ph? Can i just use 6.6 ad I use in soil?

JarrettRiggs
AlbaNinja84
Rcubed
MrGreenGreen
Madmax

There are hydroponic mediums that are classed as dependant or independant and coco has a higher cec capacity .these are said to b independent . meaning they are capable of maintaining a more stable ph level as its better buffered than others and can resist a change in ph for long periods of time..

Premium Member

Imo it depends on the soil you use and at what stage you are introducing them to it. Smaller plants need less nutrients and larger plants need more. I use as little as 20% potting soil at times and as much as 40-50% other times. I use some Perlite but many soils have that in it so not much more is needed.

I do like to cut the potting soil with coco to reduce the nutrient content and allow me to feed with liquid ferts and control the application per plant based on its individual needs.

I’ve recently started keeping multiple soil / grow medium mixes handy for when they are needed. A seedling mix, a coco mix and a potting mix. Then I can mix and match them as needed.

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oldskol4evr
AromaticRelease

I know this thread is a bit old but I’ve got a question on the subject and I couldn’t find any information.

I wanted to make an organic potting mix for 10l fabric pots, but I knew I wanted to make the most of the aeration of Coco.

Because I couldn’t find any info I ended up guessing and making the following mix:

Top Crop Coco: 40%
Worm humus: 40%
Perlite: 10%
Vermiculite: 10%

I also had some old soil that I sprinkled in but no more than 5% of total mix.
I found a dry amendment by Plagron called Bio Supermix and I’ve got biobizz organic nutes.

I feel like this is a good route to go, but I’m yet to see the results. I’m just wondering if you guys have any advice for me as this is my first DIY mix.

Grapefruitroop

I know this thread is a bit old but I’ve got a question on the subject and I couldn’t find any information.

I wanted to make an organic potting mix for 10l fabric pots, but I knew I wanted to make the most of the aeration of Coco.

Because I couldn’t find any info I ended up guessing and making the following mix:

Top Crop Coco: 40%
Worm humus: 40%
Perlite: 10%
Vermiculite: 10%

I also had some old soil that I sprinkled in but no more than 5% of total mix.
I found a dry amendment by Plagron called Bio Supermix and I’ve got biobizz organic nutes.

I feel like this is a good route to go, but I’m yet to see the results. I’m just wondering if you guys have any advice for me as this is my first DIY mix.

AromaticRelease

Thank you for all the info! I opted to not use peat after hearing Coco was a better more sustainable option. Is there a benefit to using peat as well?

I honestly had to look up what was EWC was, never heard of encapsulated worm castings before! Being in Spain they call it humus de lombriz, but I’ve also seen worm castings, vermicompost, worm humus?? Are they all the same or different?

I feel like with my mix of 40% EWC and the powdered fertiliser (contains worm castings, bat guano, bone meal, feather meal, rock phosphate, calcified algae, lava meal and other trace elements) is too strong with bottled nutrients as well. The powder stuff does say it’s an npk of 1-2-0 though.. 0 potassium doesn’t sound good now that I’ve realised it.

Would it be a bad Idea to use some canna PK13/14 to this organic mix? I’m about two weeks from end of grow.

Grapefruitroop

ahaha! get this!
https://www.lombec.com/
yes i meant earth worm casting, humus de lombrices!
Benefit of heavin peat are water retention and high CEC but is not that great to hold oxigen.
peat has also humic acids. and is a good habitat for soil life

As far as the nutrients, if you wana go just water then try to find a Complete and balanced mix and dont get too complicated.
I remember a spanish brand called vigorhumus that was all purpose all in one slow release organic ammendment
Otherwise u can leave the mix wth no nutrient and feed thru watering.
If you are in europe i think u can order Greenleaf nutrient megacrop. its a complete one, pretty fool proof!

AromaticRelease

ahaha! get this!
https://www.lombec.com/
yes i meant earth worm casting, humus de lombrices!
Benefit of heavin peat are water retention and high CEC but is not that great to hold oxigen.
peat has also humic acids. and is a good habitat for soil life

As far as the nutrients, if you wana go just water then try to find a Complete and balanced mix and dont get too complicated.
I remember a spanish brand called vigorhumus that was all purpose all in one slow release organic ammendment
Otherwise u can leave the mix wth no nutrient and feed thru watering.
If you are in europe i think u can order Greenleaf nutrient megacrop. its a complete one, pretty fool proof!

Great I’ll look into megacrop in the future, I’ve seen alot about their products in the past on various forums on the web. I do like the idea of watering only as I’d like to tinker with irrigation systems at some point. Maybe the autopots or something similar.

I now just need to work out how to give a potassium boost quickly. Do banana peels really work? Otherwise I’ll try to find a liquid kelp feed or something on those lines.

Some of my plants germinated in very small soil cups. 8 Plants. Have some coco coir left. I wanted to test only on one plant if adding coco coir would work…