Pile of expanded clay pebbles on a white background

Glass jar with cork lid filled with expanded clay pebbles on a white background

Brown expanded clay pebbles on a white background

Brown paper bag with a pile of brown expanded clay pebbles on a white background

Clear glass jar with cork lid containing expanded clay pebbles on a white background

Expanded Clay Pebbles

Expanded Clay Pebbles are coarse fired-clay balls for spacing, drainage support and hydroponic setups. Rinse before use and remember they contain no nutrition on their own.

Read full guide to Expanded Clay Pebbles

€4,95

VAT included · plus

Size:

1l 3l

Variant

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Expanded Clay Pebbles: indoor use and sizing

Expanded Clay Pebbles is a structured potting mix designed for predictable airflow and a stable root zone in indoor pots.

Best use: choose it for plants that benefit from a faster, more even dry-down.
Texture: built around structure so the mix stays open after repeated watering.
Routine: check moisture at depth and adjust the interval after the first few cycles.

Expanded Clay Pebbles – fired clay structure for reservoirs and spacing

Expanded Clay Pebbles create a durable, airy physical medium. They are especially helpful where the root zone needs a stable inert support rather than organic soil.

Watering behaviour

Coarse clay: fired balls keep their shape
Reservoir use: works in hydro and semi-hydro systems with suitable feeding
Cachepot spacing: can lift nursery pots away from standing water
No nutrients: plants still need an appropriate fertilising routine

Using it day to day

In hydroponic growing, roots need access to both oxygen and nutrient solution. In cachepots, a shallow pebble layer can help keep a nursery pot above accidental water, but it does not correct overwatering inside the pot.

What changes in the pot

Clay pebbles do not feed plants. Use a suitable nutrient routine for reservoir systems and keep organic-soil plants in an appropriate potting mix unless they have been adapted to a different setup.

How to use Expanded Clay Pebbles

Semi-hydro: Use with a reservoir-style pot for inert-substrate setups.
Rinse first: Rinse until water runs clear to remove dust and fines.
Re-use: Can be cleaned and re-used after a soak and thorough rinse.

Prep and handling for Expanded Clay Pebbles

Rinse: A quick rinse removes fines so water moves evenly through the mix.

Expanded Clay Pebbles

€4,95

Coarse Expanded Clay Pebbles FAQs

What are coarse expanded clay pebbles used for?

They are useful for terrarium false bottoms, cachepot spacing, decorative layers, large semi-hydro setups and coarse structure in some custom uses.

Are clay pebbles good for small cuttings?

Usually not. The particle size is large, so small cuttings and fine roots may not get enough contact.

Should I rinse expanded clay pebbles before use?

Yes. Rinse well to remove dust, and soak first if using them in a semi-hydro setup.

Plant Care

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