TJ Depiazzi & Sons


  • Street: 148 Depiazzi Road
  • City: Dardanup
  • State: WA
  • Postcode: 6236


  • Telephone: (08) 9728 1152
  • Fax: (08) 9728 1239
  • E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

T.J. Depiazzi and Sons is a family owned business which has been operating in Western Australia since 1979.

From small beginnings the business has grown to become the leading manufacturer of soils, potting mixes and mulches and deliver these products from the North to the South of the State.

A steady workforce of around 35 people is employed, with many long term employees. Customers include Nurseries, Landscapers and City Councils with many of these customers being with T. J. Depiazzi and Sons since the company's inception.

In striving to conduct operations and manufacturing products to minimise the harm to the environment, organic raw materials are sourced mainly from by-products of reconstituted wood processing industries and regrowth forests.

Products are manufactured to Australian Standards using both standard and self-developed procedures.

Australian Standard Licensed products include

AS-3743 Potting Mixes

AS-4454 Composted Soil Conditioners and Mulches

AS-4419 Soils for Landscaping and Garden Use

AS-4422 Playground Surfacing

As an innovative company keeping abreast of technology, new coloured products are being manufactured. Colour enhanced mulches are safe to use around the home and materials used are the same used by other companies to colour lipsticks, cosmetics and food containers.

The colourants are highly resistant to UV fading from exposure to the sun and do not wash off in the elements. The bark deteriorates before the colour stops adhering to the wood fibre.

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