COCO COIR Amount of coco needed to fill 38L

[JoeB]

How much of the stuff that comes in bags - not brick - to fill 2 x 38L pots; does it expand much?

[Weed Pharma]

Here is a caculator for estimating soil quantity for container sizes:

https://coastofmaine.com/product/stonington/

[JoeB]

Here is a caculator for estimating soil quantity for container sizes:

https://coastofmaine.com/product/stonington/

I just wanted to know if it expanded much in water in loose form and by how much so I know how much to get. I'll be using pure coco. I've ordered an 11L block to have a play with it.

[HappyDaze]

You don't want to use pure coco, it'll be waterlogged. You need between 30% and 50% perlite depending on pot size to lighten it up and provide some drainage.

This might be of use... https://www.cocoforcannabis.com/how-...fer-coco-coir/