Walk into any garden center and you will find a wall of bags labeled all-purpose potting soil. The promise is in the name. One bag, every plant, no thinking required. Most growers buy it. Most growers' plants do fine in it. And there, in that word — fine — is the problem this publication exists to address.
Fine is the gap between what your plants are doing and what they could be doing. Fine is the orchid that survives. Fine is the Monstera that holds steady but never throws the leaf you saw in a photograph. Fine is the tomato that ripens but not abundantly, the prairie planting that establishes but does not fill in. Almost every grower I have ever talked to has lived in fine without realizing there was anywhere else to go. The thing standing between fine and thriving is almost always the soil.
I learned this the hard way.
My first job out of college was in agronomy, working for a company that sold soil fumigation products to growers of high-value crops — ginseng, tobacco, a few others. When fumigant goes into the ground, it sterilizes it. Completely. Every beneficial organism, every harmful one, every fungal thread and bacterial colony in the top layer of soil, gone. The crop goes in afterward. The soil left behind is biologically empty.
I was often the one applying it. I would wake up in the middle of the night during the summer months drenched in sweat, shaking, my body trying to process whatever I had absorbed through my skin and lungs that day. The communities living near the application sites were exposed too, through offgassing — adults and children both, sometimes badly. I did not last long. One day I quit without notice and made a promise to myself that I would never again take part in work that harmed the soil, the food, or the people downwind of it.
What I carried out of that job was not just a career change. It was a way of seeing. Soil is not a substrate to be neutralized and reloaded. It is a living system, and we are not its operators. We are its stewards.
That is the thesis of this publication, stated plainly: soil is a living system embedded in larger living systems, and the way we treat it determines almost everything that happens above the ground.
Most home-grower content treats soil as a static input — a thing you buy, dump in a pot or a bed, and then forget about. Watering, light, humidity, fertilizer schedules: those are the variables that get discussed. Soil is what you start with and stop thinking about. This is the foundational mistake of how plants get grown in homes and yards across the country, and it is the reason so many gardeners are stuck in fine.
Get the soil right and the rest of the variables get easier. Get it wrong, or treat it as inert, and no amount of attention to the other variables will rescue what is happening underneath. Mineral & Microbe is, at its heart, an argument that the foundation deserves more attention than the people standing on it have been giving it.
It is substrate science applied to the way real people actually grow plants in real homes and yards. It is opinionated where the evidence supports an opinion, and careful where it does not. It assumes you are an adult capable of holding a nuanced answer, and it will not flatten ideas into bullet points to save you the work of thinking them through.
It is not a how-to-grow-tomatoes blog. There are excellent ones already, and the world does not need another. It is not personality content — no reaction videos, no garden tours, no me-talking-at-a-camera. And it is not folk wisdom dressed up as expertise. Some of what gets repeated in the gardening world is true. Much of it is not. I will tell you the difference.
