Stop the sale, stop the spread

If you see these water weeds for sale online or anywhere in Victoria, report it and we will remove it for free.

To report:

See it, report it

If you see these plants for sale online or anywhere in Victoria call 136 186 or use the online reporting form to report a State prohibited weed.

Report a State prohibited weed

The most common noxious weeds traded online

Mauve colour flowers with a darker purple patch and yellow spot on the upper petal. Multiple flowers grow on a single stalk. Some of the most common noxious weeds that have been found for sale online are the Victorian State prohibited weeds, the highest category of noxious weeds. State prohibited weeds pose a major threat to Victoria’s agriculture sector, natural environment and broader social activities, and are actively managed with the aim of eradicating them from the state.

In Victoria, it's illegal to buy, sell, import, transport, or display for sale any plants declared under the Catchment and Land Protection Act 1994.

World’s worst water weeds

Mauve colour flower with a darker purple patch and yellow spot on the upper petal. Multiple flowers grow on a single stalk. Two of the world’s worst water weeds, water hyacinth and salvinia, are sometimes sold online as ornamental plants.

These water weeds quickly grow to cover and block waterways, harming native plants, wildlife, and reducing water quality for farming, the environment and recreation activities such as boating and water skiing.

The online trade of these weeds helps them spread fast. Even these plants growing in a backyard pond can cause problems when they are carried by birds or floodwaters.

Green oval shaped leaves, covered in waxy hairs.Once established, these infestations can be costly and very hard to control. To learn more about these harmful water weeds, visit:

Along with water hyacinth and salvinia there are other aquatic State prohibited weeds to look out for, including:

How you can help

If you see a declared noxious weed for sale online, please don't contact the seller yourself. Agriculture Victoria will follow up on your report and arrange for the effective removal of the weeds.

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Page last updated: 09 Oct 2024