Daltons Coarse Pumice

A washed, screened and graded Pumice produced as a by-product of sand processing onsite in Matamata. This product is predominantly used in potting mixes, to open the mix up and achieve a desirable air filled porosity and provide good drainage.

Can be used as a cutting growing media, an input into growing media, as a hypha tufa ingredient and for decorative applications. Used extensively in the nursery industry as a growing media input and propagation medium. Also suitable to use in BBQ drip trays, popular as a pathway aggregate and as a decorative aggregate for gardens and pot tops. It is a great soil additive, improving drainage for moisture sensitive plants.

  • Consistent particle size of 4-7mm
  • Washed and screened
  • Weed and disease free


  • Daltons Coarse Pumice 15L
  • Daltons Coarse Pumice 4L

How much do I need?

Our volume calculator can help you to work out how may bags of the product you will need. You'll need to know:

  • Length of your garden box or area
  • Width of you garden box or area
  • How deep you're going to lay the product
  • Which product and bag sizes you want to use

go to volume calculator

Where to buy:
Daltons Coarse Pumice can be purchased from*

Select Garden Centres

Landscape Suppliers

*Stores are indicative only. Please phone stores for confirmation of availability.