Pumice Stone (Hyuga) JAPAN

$40.40 incl. GST

  • 18L Fine Grain (1-3mm)
  • 18L Small Grain (3-6mm)
  • 18L Medium Grain (8-15mm)
  • 18L Large Grain (12-25mm)
In Stock


  • Pumice is fascinating stuff, borne out of the superheated earth.
  • It is basically whipped volcanic glass that is made up of tiny air bubbles.
  • This means that pumice is a lightweight volcanic rock that makes it perfect for use as a soil amendment.
  • The airy rock is ideal for use with cacti and succulents as well as other plants that require excellent drainage and air circulation.
  • Plus, the porosity of pumice allows microbial life to thrive while maintaining soil structure better than perlite.
  • Planting with pumice also has the advantage of a neutral pH along with a variety of trace materials.


  • It reduces water runoff and fertilization by increasing soil absorption in sandy soils.
  • It absorbs excess moisture so roots don’t rot.
  • It improves aeration and stimulates the growth of mycorrhizae.
  • It doesn’t decompose or compact over time like other soil amendments, which means it helps to maintain soil structure.
  • It keeps clay soils loose over time for continued soil health.
  • It is a natural, unprocessed organic product that doesn’t decompose or blow away.


  • To improve drainage for plants such as succulents, mix 25% pumice with 25% garden soil, 25% compost, and 25% large grain sand.
  • For plants that are prone to rotting, like some euphorbias, amend the soil with 50% pumice or in lieu of amending the soil.
  • Fill the planting hole with pumice so the roots are surrounded by it.
  • Pumice can be used as a topdressing to absorb rainwater that puddles around plants.
  • For potted succulents, combine equal portions of pumice to potting soil.
  • For cacti and euphorbia, combine 60% pumice with 40% potting soil.
  • A layer of pumice will absorb spilled oil, grease, and other toxic liquids.
  • Once the fluid has been absorbed, sweep it up and dispose of it in an eco-friendly manner.
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