Heap of pumice stones on a white background

Terracotta pot filled with small pumice stones on a white background

Pumice

Pumice is a durable porous mineral for aeration, drainage and long-term structure. It brings more weight than perlite and works well in cactus, bonsai, aroid and custom mixes.

Read full guide to Pumice

€13,75

VAT included · plus

Size:

3l

Variant

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Pumice: practical fit and setup

Pumice 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.

Pumice – durable mineral structure for custom substrates

Pumice gives a substrate stable pore space without making it as light as a perlite-heavy mix. It is a good ingredient for growers who need structure that lasts.

What you’ll notice

Porous mineral: holds small amounts of water inside hard granules
Added weight: helps stabilise pots
Long-term structure: breaks down slowly over time
Reusable potential: can be cleaned and reused where appropriate

Watering behaviour

The granules hold some moisture internally while keeping the mix open. That makes pumice useful in succulent, bonsai, aroid and semi-mineral recipes.

When to blend it

A pure mineral pot is not right for every houseplant. Use coir, soil or bark where roots need more contact and nutrient-holding capacity.

How to use Pumice

Stable structure: Adds long-term air pockets and weight to custom substrates.
Drainage balance: Helps mixes drain without turning bone-dry immediately.
Mixing: Combine with bark and a moisture buffer for most tropical plants.

Prep and handling for Pumice

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

Pumice FAQs

What does pumice do in potting mix?

Pumice adds durable mineral structure, air space and some moisture buffering without breaking down quickly.

Is pumice better than perlite?

It depends on the use. Pumice is heavier and more stable, while perlite is lighter and easier to blend into many everyday mixes.

Can I reuse pumice?

Yes, if it came from a healthy plant. Rinse it well, remove old organic debris and avoid reusing it from pots with root rot or pest issues.

Plant Care

Repotting Houseplants: Signs, Pot Size, Soil Mix and Aftercare

Plant Care

The Ultimate Guide to Houseplant Substrates: Creating the Perfect Home for Your Plants

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