Charcoal

What is it?

Carbon-rich material produced by heating organic matter with limited oxygen. In plant substrates, it is commonly added in small quantities and is associated with carbon availability and properties that may help maintain a healthier root-zone environment.

💧Water retention -

💨Aeration -

🚿Drainage -

⚖️Weight -

🧪Nutrient holding -

🌿Organic -

Low

High

High

Very Low

Medium

Yes

What does it do?

✅Best use for:

Organic mixes - Aroids - Orchids - Epiphytes

🔬LOPOLISBIOTECH observations

Adds a carbon-rich component to the substrate
Provides additional porous surface area
Can interact with compounds and microorganisms around the roots
Is traditionally associated with helping maintain a cleaner root-zone environment
Is normally used only in small amounts in substrate mixes

We use charcoal only as a small supporting component, usually around 1% of the final mix.

💡 Key point: Charcoal can be an interesting addition, but it does not make a plant immune to root rot. If the substrate stays excessively wet, root problems can still occur.

Although charcoal is often promoted as helping prevent root rot or improve the root zone, we have not noticed a significant difference in our own plants.