Fine pumice 4–8 mm SybaSoil — a mineral component for growing media, 3 L

Fine pumice 4–8 mm: a mineral component for growing media

Pumice sized 4 to 8 mm to aerate and structure growing mixes, with smaller particles than the Chunky version.

What to consider

• Fine particle size of 4 to 8 mm
• Porous volcanic rock
• Component for free-draining mixes or mulching

Product details

How to use it

Rinse if necessary, then incorporate the pumice into your mix. Suggested starting proportions are 30 to 60 % for some cactus and succulent mixes, or 20 to 30 % for other root-zone mixes. Adjust these to the plant.

Particle size and proportion affect how the medium behaves: consider the container and watering before applying a recipe. Prevent animals from ingesting the material.

Related choices

• Chunky pumice 8–16 mm : for a coarser particle size.
• Perlite : to compare with a lighter component.

Frequently asked questions

How does it differ from the 8–16 mm grade?

The 4–8 mm grade is finer. The 8–16 mm grade creates larger spaces and is better suited to large containers and thick roots.

Is pumice as light as perlite?

Pumice is heavier than perlite, which helps the particles stay in place in the pot.

Compare growing-medium components and explore the complete range from SybaSoil.