Coconut Coir Potting Mix Recipe – Coir, Compost, Perlite or Vermiculite


[music] Hello friends In today’s video we will see How to create a very nice potting mix using coconut coir So this is how the coconut coir looks like I bought this coconut coir online at amazon You can look at the video description to get
the product link And this basically is a compressed brick of
coconut coir So that makes it easier to ship And you can just add some water to it to expand
the coconut coir And start using it as a potting mix So you need a wide container like this cart
that I am using I’m going to use some rain water That I had saved over from the rains in the
past week So what you need to do is basically Add the water to the coconut coir And let the brick absorb all the water And expand to almost like 10 times its volume [music] So once the coconut coir brick has taken in
all the water You can see how easily it breaks down into
this coconut fiber That you can use for your growing medium Now if you notice that some part of the brick
is still dry You can just keep the soft part aside And then just add some more water So that the rest of the brick breaks down Now why would you use coconut coir Why not something something like peat moss Which is being used for a while now Well the reason for using coconut coir over
peat moss is that Peat moss is a non renewable resource Which means that we’ve been mining peat moss For our use from nature And there’ll be one day when we might not
have enough peat moss available Coconut coir however is a by-product of the
coconut industry Its basically the left over husk of the coconut That is not really used for any other purpose So as more and more companies start manufacturing
coconut coir We should see that the price of the coconut
coir growing medium should also start going down And its already not that expensive considering
that All this coconut coir that you are going to
see Costed me about 10 dollars So this little brick that you saw will expand
and yield Something like 3 or 4 cubic feet of growing
medium Which is pretty impressive So here you can see almost all the coconut
coir is ready The coconut brick has absorbed all the water And you can see that this whole garden cart
is now full of coconut coir That can be used as a growing medium Coconut coir itself does not contain a lot
of nutrients But it does contain some potassium Which will help your seedlings grow very well And that’s what makes coconut coir a great
seed starting mix as well So here you can see its all ready And what I do is once all the coconut coir
has expanded I store them in big bags So that I can use them easily in the future So for the potting mix recipe We have some compost This is some home made compost We have some Perlite which is basically a
light medium And the coconut coir that we just expanded
from the brick We will also be adding some rock dust to this
potting mix I am using Azomite here which is a volcanic
rockdust And what it basically does is adds some important
nutrients to this potting mix If you want you can add some All purpose fertilizer
to this potting mix as well I’m using a liquid fertilizer later on Which is why I haven’t added the fertilizer
to this mix But remember that the coconut coir potting
mix is A mix that doesn’t have any nutrients And when you plant your seedlings or your
plants in it You need to have some nourishment So either you use a well balanced fertilizer
– an organic fertilizer And add it to your potting mix Or you could use a slow release fertilizer
as granules in your potting mix If you plan to use liquid fertilizers like
seaweed or fish As I am planning to, you can leave that out If you do not have Perlite available, you
can substitute that with Vermiculite And both Perlite and Vermiculite can be ordered
on amazon As well as in some home improvement stores
around your area This was the potting mix that we created using
the coconut coir And I am planting some spinach seedlings That are now ready to be transplanted into
this potting mix And as I mentioned, I’ll be using a liquid
fertilizer for these plants So I hope you liked the video And I hope you liked this potting mix recipe If you have your own recipe, please do share
it with us And I’ll see you again soon Happy Gardening! [music]

19 thoughts on “Coconut Coir Potting Mix Recipe – Coir, Compost, Perlite or Vermiculite

  1. Make sure the coco coir is buffered before use as unbuffered coco will cause lockout of cal/mag and iron and in the same process will release potassium and sodium.A lot of those coir bricks are also loaded with salt and need to be leached before buffering .

  2. if you use coir, you need to understand a number of plants don’t do well with the higher potassium, phosphorus, sodium, and chlorine. These unbalances cause lockout of other nutrients and may require high amounts of calcium and magnesium to balance the nutrients. The issue is unless you buy the much more expensive processed coir that states it is buffered, you may not know until your plants do poorly. It is well know that the build-up of fertilizer salts are an enemy to plant roots. Coconuts grow in high salt areas along the ocean, and because there is an abundance of salt water, many sources use it instead of fresh water to leech the coir when processing. Some may not leech at all or only 1-2 times – you just don’t know. Everyone thinks oh coir is a natural by product, a waste product and it is but it takes a lot of natural resources such as precious fresh water to process it so most plants will grow in it. But if one brand of coir is way cheaper than others, stay away from it and try a more expensive brand that mentions triple washing with freshwater, buffering, etc. If your potting media is already naturally high in salts, to me you are always fighting an uphill battle. Coco often has a CEC in the range of 90-100 meq/100 g of media. The CEC of coco is naturally loaded with potassium (K) and sodium (Na), with little or no calcium (Ca) or magnesium (Mg). These are the four cations that are most important when buffering coco. The loss of the Ca and Mg is one thing, but you also get an increase of K and Na. High levels of K (potassium) will hinder the uptake of Mg by plants. Sodium can negatively impact plant health even at low levels and is toxic to some plants starting at 50 ppm. Growing in coir requires the use of specialized nutrients, unless already buffered when you buy, you will be feeding more calcium and magnesium. Even if buffered as to not lock out some nutrients and be too much of others – this will change and your nutrient and methods will need to be adjusted. You can’t just expect to use coir the same as peat or bark. If I’m growing something that is partial to coir I always soak 24-48 hours in fresh water, rinse and rewash the coir a couple of times until salt levels are reduced to almost nothing – but is a pain. Most studies I have read do not recommend growing strictly in coir but to use a blend of peat along with other ingredients. Compost is not enough to buffer and perlite and vermiculite add drainage but also hold water. Perlite can hold up to 8% of its dry volume in water or nutrient so,utions. See Perlite Institute. See this article on the chemistry of coir – https://www.maximumyield.com/the-chemistry-of-coco-coir/2/2678 . Just remember, unlike in-ground growing, growing in soil-less mixes (in raised beds or containers) means you must add everything – NPK, minerals such as calcium, magnesium and sulfur, trace minerals. This includes keeping the ph correct as fertilizer and water sources play as big a part in ph as does the media. And even if added in the beginning, most will be needed again in a few months because watering will leach it through high drainage media. And most important…keep in mind you can add all the microbes and bio- this or that you want, but if you use chemicals that kill them – what’s the point. Research before you use any chemical, one for toxicity to bees, birds, fish and also microbes.

  3. I used about half and half of Coconut Coir and an organic manure plus compost. At least I did for a decent amount of my buckets and pots. In some cases I mixed in other things, but I can't remember. This is my first year taking gardening seriously, though I failed to record what I did in each container. All I can say for sure is that it is all organic based, no Miracle Gro.

    At the end of the season I'm probably going to recycle my potting soils by mixing them all together, add a mushroom compost and more Coconut coir. I'll call it my Square One initiative.

    Also I love the rrrr sound.

  4. Never heard of using this stuff for my seed starting planting Have to try it better than lugging 40 lb bags of Top Soil I guess etc Thanks for sharing great info etc.

  5. Vermiculite and perlite are not interchangeable. Yes, they both help aerate soil but vermiculite retains more water which will allow you to water at longer intervals. Perlite is more forgiving to overwatering. Most coco coir must be rinsed and strained to remove excess salts as a good portion is harvested by and rinsed with salt water. Coco also will cause calcium and magnesium deficiency so it is necessary to amend it with a cal mag supplement. Also, nutrients should be added throughout the grow as coco can easily loose nutrients after multiple watering.

  6. Doesn’t the coco coir needs to be buffered with calmag? Coco coir contain lots of salt and if not buffered will release it over time and will cause a salt build up in your grow pot. 2ml of calmag for every one gallon of water use to soak the coco coir. Somebody please let me know if I’m wrong.

  7. One thing that I do, is add the liquid fertilizer to the water that expands the coir block. That way it is in the coir as you mix your potting mix.

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