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General Rationale

Mandatory treatment of potpourri

Effective 14 July 2015 to 21 December 2018

Potpourri is a mixture of dried plant material used for decoration or scent. Ingredients of potpourri may include unidentified or restricted plant material, seeds and pods.


All consignments of potpourri are subject to mandatory treatment with:

  1. ethylene oxide at 1500g/m³ for 24 hours at 21°C, or

  2. ethylene oxide at 1200g/m³ for 5 hours at 50°C under initial vacuum of 50kpa, or

  3. gamma irradiation at 25 kGray.