Horticultural vermiculite for growing media – 500 g

This horticultural vermiculite is ideal for preparing your coconut fiber-based growing media, particularly CVG-type mixes.

It improves the texture of the substrate, helps retain moisture, and results in a lighter, more uniform mixture that is easier to work with.

Why use vermiculite?

• Improves the substrate's water retention
• Lightens the coconut/gypsum mixture
• Minimizes compaction of the substrate
• Promotes better moisture distribution
• Suitable for mushroom growing media

A convenient format for your CVG recipes

This 500-gram bag is intended for use with approximately two 650-gram blocks of coconut coir.

It makes it easy to prepare your own CVG growing medium by simply adding coconut fiber, gypsum, and hot water.

Estimated CVG recipe

• 1 block of coconut fiber (650 g)
• 200 g of vermiculite
• 50 to 100 g of gypsum
• About 3.5 to 4 liters of hot water; adjust according to the desired moisture level

After watering, the potting mix should be moist but not soggy. When you squeeze a handful of the potting mix, only a few drops should drip out.

Usage

1. Place the coconut coir, vermiculite, and gypsum in a clean bucket.
2. Add the boiling water gradually. Cover the bucket and, if possible, add a blanket or other insulating material to maintain a high temperature for as long as possible and optimize pasteurization.
3. Mix thoroughly after the coconut block has been completely rehydrated.
4. Let it cool before use.

Features

• Weight: 200 g
• Type: Horticultural vermiculite
• Uses: CVG and CVGT substrates, coconut coir blends, mushroom cultivation
• A lightweight, mineral-based, and naturally absorbent product

Advice from La Mycosphère

To ensure a well-balanced growing medium, avoid adding too much water at the start. It’s best to begin with a moderate amount and then gradually adjust the moisture level of the mixture.