Grow guides from the lab bench.
Practical, science-backed guidance on running clean cultures and healthy grows — written by a plant pathologist, for growers who want to understand the “why,” not just the steps.
Contamination is a diagnosis, not bad luck
Green mold, wet spots, sour smells — most "failed" grows are telling you exactly what went wrong. Here's how a plant pathologist reads the signs, traces them back to the break in sterile technique, and fixes the cause instead of the symptom.
The library
New guides published as we growSterile technique that actually holds
The handful of habits that prevent most contamination — airflow, surfaces, and the order you do things in.
Read →Choosing a substrate for your strain
Straw, hardwood, supplemented masters — matching the medium to the mushroom, and why it changes your yield.
Read →Reading colonization like a chart
What healthy mycelium looks, smells, and moves like — and the early warning signs worth acting on.
Read →Fruiting conditions, strain by strain
Temperature, humidity, and fresh-air targets that get each of our lines to pin and flush.
Read →From grain spawn to first harvest
A start-to-finish timeline for inoculating production substrate with Haywood spawn.
Read →Storing & refreshing cultures
Keeping lines vigorous over time with proper transfer and cold storage.
Read →New guides, strain drops, and what's back in stock.
No noise — just a note when there's something worth knowing from the lab.