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coco coir for cannabis

Soil’s a very forgiving media — it already contains nutrients and beneficial microbes to help maintain plant health and ward off diseases.

Great for Plant Roots — Coco coir is effective at holding onto moisture and nutrients for roots, but also has a lighter texture that lets it hold onto more oxygen. This helps prevent over and underwatering. Coco coir tends to promote healthy and fast root development compared to other potting mixes.

Since roots are insulated by the soil, air temperature variation has less of an impact on the root zone.
Why Use Coco Coir for Growing Cannabis?
Whether you are a beginner to cannabis growing, or an old-timer who is thinking about changing their technique, selecting the right growing method takes some thinking about. You need to select a medium that suits both your growing space and your skill-set so that your marijuana plants prosper. You will definitely have heard of soil growing but what about Coco Coir?
You don’t even have to adjust the pH of your nutrient solution. Why? Soil microbes and organic matter have the ability to modify the pH range to allow for nutrient uptake. However, if you regularly apply a nutrient solution with a pH below 5 or above 8, you will see benefit from adjusting the pH to between 5.5 and 6.5. Just don’t overdo it.
Grow Faster than Soil — Coco gives a lot of benefits of hydroponics, which causes plants to grow fast by providing nutrients to the roots in the most easily accessible form. Plant roots don’t have to go out and search for nutrients, saving the plant precious energy. But growing directly in water can be complicated. Coco coir gives many of the benefits of hydro with a soil experience. This results in a quicker harvest and bigger yields for you as the grower.

Coco coir is the recycled and processed natural fibre from the husk of coconuts, grown mostly in India and Sri Lanka. What was once regarded as waste material, in contrast today constitutes a magnificent growing medium for cannabis plants both indoors and outdoors. With a pH of typically between 6.5–7.0, coco coir is comparable to unfertilised soil. Coco coir is available from most grow shops in 50l sacks. It’s sold just like soil. But usually more readily available in tightly compressed coco bricks.

Whether you are a beginner to cannabis growing, or an old-timer who is thinking about changing their technique, selecting the right growing method takes some thinking about. You need to select a…

Coco coir for cannabis

10.) Repeat steps for second brick of coco coir & remaining half of perlite bag

3.) Put the first coco brick inside the liner
Although you can re-hydrate coco bricks at home, a pre-made mix takes out all the work! I highly recommend choosing a mix that contains both coco and perlite such as Mother Earth Coco Mix (70% coco / 30% perlite for growing cannabis. I’ve grown with Mother Earth at least a half dozen times and always get great results. Another pre-made coco mix I’ve tried that works great for growing marijuana is Roots Organics Coco Soilless Mix.

OR 4 x 2-gallon containers plus extra
Often when growing cannabis in coco coir, it is helpful to supplement with extra Calcium and Magnesium as calcium deficiencies & magnesium deficiencies are relatively common in coco coir. There are many supplements that provide a boost of these nutrients, and pretty much all of them will work fine. A commonly seen one called “Cal-Mag” by Botanicare works well (and is pretty inexpensive), and so does “CaliMagic” from General Hydroponics. Coco coir is an excellent growing medium as long as you maintain the pH between 5.5 – 6.5 and make sure the plants have enough calcium and magnesium.
How to Rehydrate Coco Coir & Mix in Perlite
3b.) If you started in solo cups, you should transplant to bigger containers once the seedlings have grown about 3 sets of leaves. Once your seedling has grown 3 sets of leaves, it’s time to transplant to a bigger container!

    Dyna-Gro (Foliage-Pro, Bloom) & Cal-Mag

4.) Fill the bucket halfway with water.

Ever wondered how to use coco coir blocks to make a cannabis-friendly rich potting mix? This tutorial breaks it down…