Weeding out trouble and growing hope at the Prom Sanctuary

Tuesday 16 June, 2026

Autumn update

Cooling autumn weather has not deterred the amazing work being done by our passionate staff, dedicated community groups and Traditional Owners. Together, we’re powering way to get the fence started, building the Prom Sanctuary to conserve nature and fight extinction at Wilsons Promontory National Park.

Here are some recent highlights:

Bushbank: Last update, we shared that we’d started the second season of seed collection. Throughout autumn, we’ve collected heaps of seed for the Bushbank project. Excitingly, Parks Victoria staff have been able to use spatial imagery to identify and map eucalypts on the Yanakie Isthmus before contractors went out to groundtruth the mapping and determine which eucalypt species are present. This allowed us to identify and map two significant, healthy populations of Snow Gums (Eucalyptus pauciflora).

This is an incredibly exciting discovery for the Prom, as this species faces a variety of threats across its fragmented and declining distribution in Victoria. Given the great health of these Prom snow gums, seed was collected to go into storage as an insurance against future impacts on this species.

Caption: Sorting Snow Gum (Eucalyptus pauciflora) seed. Credit: Parks Victoria

Island weed works: Two trips to Bennison and Doughboy Islands in Corner Inlet were undertaken earlier in the season. Contractors were taken via boat, and camped overnight on the islands to treat various weeds. This included:

Mirror Bush (Coprosma repens) and
Blue Periwinkle (Vinca major)

Similarly, helicopter transport to Kanowna Island, allowed undertook a two-day effort controlling woody weeds, joined by staff from First Nations corporations. Corner Inlet and Kanowna Island are significant sites for international migratory birds. Controlling these invasive weeds islands improves the habitat for both the birds and the many other plants and animals that live on these offshore islands.

Wide coastal landscape showing an expansive tidal flat at low tide, patterned with shallow water channels and patches of exposed sand and mud. In the foreground, a slope with green shrubs and grasses leads down to scattered rocks and a small structure with a pitched roof. In the distance, low, hazy mountains stretch across the horizon beneath a blue sky filled with scattered, wispy clouds.

Caption: Bennison Island. Credit: Parks Victoria

Restoration works: Mulching of coast tea tree at Oberon Bay has been completed under the Nature Fund habitat restoration program. This area will now enter the next key stages, such as reseeding species that have been lost under thick blanket of invasive tea tree. As part of these efforts, the Friends of the Prom volunteer worked with local parks staff to collect seed for major reseeding efforts.

A wide, open field covered in freshly mulched or cleared vegetation stretches toward a backdrop of rolling, forested mountains. In the mid-ground, a small yellow skid-steer loader sits on the cleared area, with taller, dense vegetation lining the right edge and a cluster of trees on the left. The sky above is bright blue with scattered white clouds, casting even daylight across the landscape.

Caption: Mulching efforts in Oberon Bay. Credit: Parks Victoria

We’ve also expanded mulching works into new areas, with White Kunzea (Kunzea ambigua) being treated along 5 Mile Road. Like coast tea tree, kunzea is a native species that can form monocultures that outcompete all other plant species, massively impacting a healthy diversity of native plants and animals. Mulching on the heathland is critical in supporting a wide range of threatened species such as the Eastern Ground Parrot (Pezoporus wallicus) and Southern Brown Bandicoot (Isoodon obesulus).

One of Parks Victoria’s lead project officers on this work, Lauren, recently presented at the Grassland Resurrection Forum in early May. This forum brought together Traditional Owners, land managers, researchers and conservationists to share knowledge and management strategies for managing Victoria’s grasslands, with less than 2% remaining in the state.

Protecting our flora and fauna

The summer breeding season for Hooded Plovers (Thinornis cucullatus) wrapped up in April with two fledglings for the Prom, one at Whisky Bay and one at 5 Mile Beach! It’s been approximately 5 years since we’ve been aware of a successful fledge at the Prom during breeding season.

Monitoring Hooded Plovers is made possible by the support of BirdLife Australia, volunteers, and Parks Victoria staff. A huge thank you to everyone who has been involved.

Caption: A hooded plover on the beach at Wilsons Promontory. Credit: John Newman, some rights reserved (CC BY-NC) via iNaturalist.

Sea Spurge (Euphorbia paralias) is a highly invasive coastal weed that forms dense populations which outcompete native vegetation, alter sand dune structure and reduce available habitat for fauna, including the threatened Hooded Plover. All efforts are critical in helping our new fledglings any way we can!

Current control methods have focussed on treating the species like any other weed – spraying and manual removal. However, through the CSIRO’s national initiative, the fungus Venturia paralias was released at two locations along Cotters Beach in April.

Parks Victoria and Friends of the Prom volunteers worked together to release the fungus that damages the leaves and stems of sea spurge, reducing its reproductive capacity. Extensive research showed the fungus is highly specific to sea spurge and poses no risk to Australian flora.

Follow up monitoring will occur to assess the establishment of the fungus at the Prom. We’re hoping that this initiative will further support the years of manual labour that Friends of the Prom have undertaken along the Prom’s beaches.

About Prom Sanctuary

Prom Sanctuary is a 20-year vision to establish a climate change refuge where vulnerable wildlife and habitats thrive, at Wilsons Promontory National Park, affectionately known as ‘the Prom’.

Spanning 50,000 hectares at the southernmost tip of mainland Australia, the Prom is home to more than 150 threatened species of native plants and animals, encompassing 10 major ecosystem types. Valued and cared for over tens of thousands of years by Victoria’s Traditional Owners and protected as a national park for more than a hundred years, it has survived the scale of disruption and land clearing that occurred elsewhere around the state and nation.

This unique location, its cultural significance, history, geography, naturally cooled climate and natural beauty make it an ideal climate refuge for wildlife. As a beloved destination for around half a million Victorian, interstate and international visitors each year, it is also an ideal place to deeply connect people with nature and build support, advocacy, action and champions for nature’s needs in challenging times.

Watch the video below to learn more about Prom Sanctuary.

You can support the Prom Sanctuary project

In early 2025, Prom Sanctuary reached a significant milestone. Parks Victoria worked with long-term charity partner, People and Parks Foundation to raise over $800,000 to carry out major habitat restorations as core steps in establishing Victoria’s largest conservation sanctuary.

As much as $25 million is needed to realise the full potential of the Prom Sanctuary project. To help support this critically important work through a tax-deductible donation, visit the People and Parks Foundation website.

The People and Parks Foundation is a long-term charity partner of Parks Victoria. It is an Australian charity registered with the Australian Charities and Not-for-profit Commission and is trustee for the People and Parks Environment Trust (Deductible Gift Recipient 1).