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Gardeners are talking about a simple clay pot that’s starting to show up in more gardens, and it isn’t there by accident. Although the clay pot olla looks like a little buried clay pot, it’s actually an ancient watering technique.
An old watering technique
The olla is an unglazed terracotta pot buried in the soil with just its neck visible. This traditional watering method has been used for centuries, especially in dry regions. And it’s finding new fans among gardeners who want an easier, more reliable way to keep their plants hydrated.
A low-tech watering system that works on its own
The process is simple: fill the olla with water and cover it with a lid. The porous clay slowly releases moisture into the surrounding soil, but only when the soil is dry enough to pull it out. Plant roots naturally grow toward the pot, taking in exactly what they need. No hoses, timers, or guesswork—just steady, controlled hydration directly at the root level.
Why gardeners are choosing ollas
Ollas can reduce water waste by up to 70%, making them especially useful in hot climates or gardens that dry out quickly. They keep the soil consistently moist, which helps vegetables like beans, tomatoes, and squash stay healthier and less stressed.
They also reduce evaporation and runoff, and because they last for years, they’re a practical long-term solution. Most people only need to refill them every few days, which makes garden upkeep feel much more manageable.
A simple tool with clear signs
If you spot an unglazed terracotta pot buried with just the top showing and a small lid nearby, you’re looking at an olla. It blends into the bed, but the work it does beneath the soil makes a noticeable difference in how plants grow.
