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Can you mix soil with coco coir?

3 min read

Asked by: Crystal Louis

Coco coir in your soil Mixing coco coir into existing garden soil can be a boon for plants. Bringing a versatile combination of water retention and natural drainage, the coir will loosen the texture of clay soil, reducing waterlogging.

Can u mix coco coir with soil?

Coco coir, derived from the fibrous husks of coconuts and ground into fine fibers, is a great addition to soil or can also be used on its own to create a soil substitute. When creating a soil mix, you must monitor your soil to ensure you have the correct nutrients to optimize your plant’s growth.

How do you add coir to soil?


Add water. And let it absorb. And expand. It may take about 15 minutes you can use a shovel or a digging fork to break apart any large remaining Chung and stir it until it's fluffy.

Can you use just coco coir as potting soil?

Using only coco coir as a soil substitute can be done but it doesn’t have as much drainage as a coir-based potting mix with added perlite or vermiculite. You will also need to fertilize regularly.

What are the disadvantages of coir?

The most common problem with coir is it can have an extremely high salt content, especially in lower grades. Coir high in salts should be leached before use. Coir has a lower cation-exchange capacity and it is high in phosphorous and potassium.

Is coco coir better than soil?

When compared with soil, coco tends to dry out a lot quicker, meaning your plants will need to be watered more frequently. Key benefits of opting for growing in coco include high yields and quick harvest, additional room for root development and pH neutral values.

Can I grow plants in just coco coir?

You can grow almost any plant in coco coir as the material acts just like any other potting soil or peat. As long as you know what you are doing, almost all plants will benefit from being planted in coco coir. You can use coco coir to grow everything from exotic plants, to even more common plants and flowers.

Is coconut coir good for clay soil?

The best mix I came up with used equal parts coarse sand, small horticultural lava rock, coir (rehydrated coconut husk fiber), and compost, and it worked great. It drained quickly, and the grasses and herbs I planted rooted through it into the clay below, and thrived.

Does coco coir need perlite?

No. It does not. Adding perlite to coco coir has its fair share of upsides and downsides, but the benefits clearly outweigh the few shortcomings. You will notice improved plant growth and a significant increase in yields as part of the benefits of mixing perlite with coco coir.

What happens if you dont buffer coco?

An unbuffered coco coir will cause nutrient lock out of calcium and magnesium because the coco substrates have a stronger attraction to these 2 salts compared to potassium and sodium. As a result, sodium and potassium will be displaced into the solution and uptaken into the roots.

How do you fertilize coco coir?

As coco coir has no nutrients in it, you’ll need to your own, and you have a few options:

  1. Add compost – a simple and easy step that will provide nutrients for well over a month.
  2. Add wormcasts, manure or similar.
  3. Add slow-release fertiliser pellets.
  4. Add quick-release fertiliser dissolved in water.


Can I start seeds in coco coir?

Coco coir in its various forms is an excellent substitute for peat in seed-starting mixes and potting soil mixes. With the addition of a few amendments to improve nutrition and drainage, coir is an excellent growing medium for seed-starting.