Petruscio Farms

Tag: substrate

Designing a Mix: The Logic Behind the Ratios

A recipe travels; the logic behind it travels further. Here’s how we actually design a substrate — working backward from what the plant needs to a ratio that hits it — so you can adjust any mix for your own conditions without guessing. Article 3 of the Petruscio Substrate Series.

April 14, 2026
The Aroid Ingredient Glossary: Particle by Particle

Every ingredient that shows up in a chunky tropical mix — what it is, what it actually does in the root zone, where it’s worth buying, and where we’ve concluded it isn’t. Including the ingredients we deliberately avoid. Article 2 of the Petruscio Substrate Series.

April 14, 2026
How Substrate Actually Works: A Root-Zone Primer for Rare Plant Growers

Before the recipes, the physics. Why a pot isn’t a patch of forest floor, where water actually lives in your mix, and the variables that decide whether a plant thrives or drowns. Article 1 of the Petruscio Substrate Series.

April 14, 2026
Beyond Dirt: The Science of What Your Plants Are Really Growing In

The substrate your plant grows in isn’t just a place to anchor roots. It’s a living system that determines whether your plant thrives or struggles. Here’s what’s actually happening in your growing mix — and why it matters more than almost anything else you do.

April 9, 2026

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