HOW IT WORKS

Simple. Natural.
Effective.

CottaCups are a time-tested way to deliver water right to your plants—underground.

It’s simple to use and incredibly effective.

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Cotta Cup irrigation system
THE IDEA IS SIMPLE

Water where plants need it most.

CottaCups are unglazed terracotta pots buried in the soil near your plants.

When filled with water, the porous clay slowly releases moisture into the surrounding soil, creating a zone of consistent hydration at the root level.

The result? Healthier plants, less watering, and stronger growth with less effort.

Cotta Cup underground watering system
1

Fill

Fill your reservoir with water and let gravity automatically fill the CottaCups.

2

Slow Release

Water seeps through the porous terracotta.

3

Root Zone Hydration

Water moves slowly through the surrounding soil, creating an expanding plume of hydration.

4

Healthy Plants

Roots access the water they need, when they need it.

THE GROWING PLUME

Underground
where it matters.

As water slowly escapes the CottaCup, it moves outward in all directions—hydrating the soil and creating a “plume” of moisture.

Plant roots naturally grow into this moist zone, where conditions are ideal for strong, healthy growth.

Cotta Cup hydration plume on day 1

Day 1

Water begins to seep into the surrounding soil.

Cotta Cup hydration plume on day 7

Day 7

The hydration plume expands as moisture moves farther into the soil.

Cotta Cup hydration plume after 30 days

Day 30+

Roots grow into the established moisture zone, accessing consistent hydration.

BUILT ON NATURE

Why terracotta?

Porous by nature

Unglazed terracotta is naturally porous, allowing water to pass through slowly.

Safe & sustainable

Made from natural clay and fired in high-temperature kilns. Safe for plants, soil, and the environment.

A tradition that works

Used for centuries around the world, now a trusted solution for modern gardens.

Illustration showing a Cotta Cup releasing water through terracotta into the surrounding root zone
Cotta Cups for garden irrigation
READY TO GET STARTED?

Put CottaCups
to work in your garden.

Give your plants consistent hydration while using water more efficiently. Choose the CottaCup system that fits your garden and start watering where it matters most.

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Simple to install. Natural materials. Built to last.