Trichoderma is a genus of beneficial fungi found in soils worldwide. It is becoming particularly important in cannabis cultivation, as it promotes root growth, suppresses diseases and optimizes nutrient uptake. But how exactly does it work – and why should every grower know about it?
The 5 most important benefits of Trichoderma for cannabis
1. natural protection against harmful fungi
Trichoderma competes with harmful fungi such as Fusarium or Pythium for space and nutrients. By colonizing the root zone, it displaces pathogens and reduces root rot.
Critical question: Does this also work on plants that are already infected?
Counterpoint: Trichoderma has a preventative effect – additional measures are necessary in the case of acute infestation.
2. improved nutrient availability
The fungus breaks down organic matter and releases phosphorus, potassium and micronutrients. Studies show up to 30% higher yields when Trichoderma is used.
Alternative perspective: Not all strains work the same – choosing the right product is crucial.
3. stronger root growth
Trichoderma produces hormones such as auxins, which stimulate root branching. More roots = better water uptake and stress tolerance.
4. biological alternative to chemicals
Perfect for organic cultivation! Reduces the need for fungicides and protects the environment.
5. higher resistance to drought stress
Due to the symbiotic relationship, Trichoderma-colonized plants can withstand longer periods of drought.
Application of Trichoderma – step by step
- Pre-treatment of seeds: Soaking in Trichoderma solution.
- Soil mixture: Add 5-10 g per liter of substrate.
- Watering: Water every 2-4 weeks with Trichoderma-enriched water.
Caution: Do not combine with chemical fungicides – this kills the beneficial fungi!
Science vs. myths – common misunderstandings
- Myth: “Trichoderma works immediately.”
Truth: It takes 1-2 weeks to establish itself in the root zone. - Myth: “More is better.”
Truth: Overdosing can disturb the microbial balance.
Conclusion
Trichoderma is a game changer for sustainable cannabis cultivation – whether indoors or outdoors. With the right application, you not only increase yields, but also reduce pesticides.