Petruscio Farms: where science and care grow side by side.
A Bay Area gardening enthusiast guided by horticultural rigor and a genuine love for tropical foliage and homegrown food — helping growers cultivate confidence through clarity.
Care Guides
Species profiles, seasonal care calendars, and troubleshooting tips — from aroids to vegetables — to help you grow with confidence.
Substrate Science
From substrate chemistry to humidity management — we make the “why” behind plant care feel intuitive and accessible.
Plant Spirits
A character lives inside every plant. Meet the spirits we’ve drawn alongside weekly care guides.
From the Blog
Words, reflections, and practical wisdom from the garden.
- The Petruscio Farms Substrate System: An OverviewSix recipes, three layers, zero bark. An overview of our substrate system — which mix fits which use case, from root rot recovery to tissue culture acclimation. Article 4 of the Petruscio Substrate Series.
- Designing a Mix: The Logic Behind the RatiosA 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.
- The Aroid Ingredient Glossary: Particle by ParticleEvery 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.
Let’s grow together.
Whether you’re nurturing your first houseplant or expanding a rare aroid collection, we’re here to help you grow with intention.