If you’ve ever wanted to grow your own lettuce but didn’t want the mess of soil, the noise of a pump, or the cost of a fancy hydroponic kit — the Kratky method is your answer.
It’s the simplest form of hydroponics on earth: a container, some water, a few nutrients, and a net cup. That’s it. Plants grow in a reservoir of nutrient solution, and as they drink it down, an air gap forms that gives the roots exactly what they need. No electricity. No pump. No daily intervention.
And when you do it in a standard storage tote? You can scale it on a kitchen shelf, spare bedroom, or under a grow light in a closet — and the lettuce you grow is fresher, faster, and more nutrient-dense than anything from the grocery store.
Here’s how to do it from scratch.
