Substrates

Nutrient-balanced, field-tested substrates designed for strong, consistent fruiting.

Brown Treasure substrates are crafted to provide optimal structure, moisture retention, and nutrition for healthy mycelial growth and reliable flushes. Ideal for use with grain spawn after full colonization, these blends support aggressive surface colonization while maintaining proper airflow and hydration.

Trusted by growers who want predictable performance, reduced issues, and clean results from spawn to harvest.