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Start here.

What this is
The frame, and a way in
The whole site in
one argument, seven beats
Updated
2026-06-16

Growing is a conversation with the plant. It shows you what it needs; the skill is learning to read it. The right technology makes you a better listener: a twenty-dollar sensor that watches the greenhouse while you sleep, last season's numbers you can actually ask a question of. The wrong technology just sends you a bill every month and keeps your records hostage. Knowing the difference is what this site is for. Built by growers, free to use, and what you collect stays yours.

A small backyard greenhouse on a sunny lawn, surrounded by garden beds and flowers.

Who we are.

Open Agriculture Technology is an open collective, growers, farmers, makers, researchers, educators, and the trade, sharing what we know about growing well. We don't compete; we create and share. The library is open to read, use, and add to. Underneath it all sits one idea: appropriate technology, the tool that fits the job, not the most sophisticated one.

The problem more data won't fix.

You were taught growing as a stack of separate subjects: soil in one book, water in another, pests in a third. But the plant does not live in chapters. It lives in all of them at once, every second, and they pull on each other constantly. Nothing operates alone.

That is why you can have more data and more gear than any grower in history and still be guessing. The problem was never information: it is integration. It shows up as everyday misdiagnosis: the grower adding iron for a yellow leaf when the real fault is a pH lockout; the indoor grower dosing calcium when the true cause is the humidity. The symptom is on the leaf; the cause is somewhere else in the system. Treat the symptom and the trouble comes back.

The way of seeing.

Here is the lens, and it is free: a plant experiences a handful of inputs (light, air, water, the root zone, the feed) and those inputs couple and cascade, so a change in one moves the others. Master that and one rule falls out of it: change one thing without wrecking another. Clean intervention is the whole discipline in four words.

The full, ten-input form of this is the language of controlled environments, where the coupling was studied hardest, at the highest stakes. A field grower meets a lighter version of the same truth; a sealed-room grower follows it all the way down. Same conversation with the plant, a different share of the dials.

Start where you grow.

Every grower controls some of the environment and leaves the rest to nature. The only difference is how many of the dials are in your hand, and that is the fastest way to find your door. Start where you grow today; it all connects as you go.

Or come in by what you grow, or what you need:

Where this comes from.

The high-control, high-value corners of growing, commercial greenhouses, intensive indoor, the research literature, are where this coupling was studied hardest, because the stakes were highest. Much of that knowledge is written for specialists. We work to put it in plain language and make it usable at any scale, food-first. Commercial players are part of this too, as members of the collective.

The longer story of agriculture and its technology, and the map of what is on the market today, live here:

The doing.

Once you can see the system, the tools earn their place: calculators, build guides, sensing, monitoring, control, Hort Assistant, and the SCADA discipline for those who run every dial. All of it serves the plant. Technology serves the plant; it is never the headline. Fit to purpose, scale, budget, and the people who will actually run it. The whole technology side is built on that.

Start with a need

Resources around you.

A small grower is rarely short on advice and almost always short on a map. The expert help already exists: a Cooperative Extension agent in nearly every US county, cost-share programs, low-interest capital, the rules that matter as you sell more, scattered across agencies that assume you know they are there. We make it legible. See the Resource Map.

The collective.

Growers teach growers. The vendors are members, not a checkout. Contribute what you have figured out and you walk away more capable, and so does everyone after you. The path is simple: become aware, understand the system, build what fits, own your data, and compound it season over season. More about the collective → · Get in touch →