Knotweed treatment project at John Daly Park

The Sunshine Coast Regional District (SCRD) is launching a multi-year invasive knotweed treatment project in John Daly Park to protect sensitive wetlands, Anderson Creek and the park’s native ecosystems.

Knotweed is one of British Columbia’s most invasive plants. It spreads rapidly, forms dense stands that crowd out native vegetation and is extremely difficult to eradicate once established. The infestation in John Daly Park is located near wetlands and Anderson Creek, an important salmon-bearing stream, making careful environmental management essential.

The project will begin with a detailed assessment and mapping of the infestation, followed by approximately five years of treatment and monitoring. Qualified environmental professionals will oversee all aspects of the project to ensure treatment is carried out safely and in accordance with provincial regulations and environmental best practices.

During treatment, which will take place from September 13 to 15, 2026, visitors can expect temporary signage in work areas and occasional short-term closures of small sections of the park. Annual monitoring will measure the effectiveness of treatment and guide future work.

The treatment plan will include the use of provincially approved herbicides where appropriate, except immediately adjacent to or within Anderson Creek. All herbicide applications will comply with provincial regulations and permit requirements, with measures in place to protect wetlands, fish habitat and surrounding ecosystems.

Mechanical removal is not a suitable option for this infestation because knotweed’s extensive underground root system can regenerate from even tiny plant fragments, potentially spreading the infestation further.

The SCRD has also identified knotweed on approximately seven neighbouring properties. Adjacent property owners will receive direct notification because managing knotweed beyond park boundaries will improve the long-term success of the project. Under the BC Weed Control Act, landowners are responsible for controlling noxious weeds, including knotweed, on their property.

Project updates will be shared through the SCRD website, social media channels, park signage and direct notifications to neighbouring property owners.

Residents with questions about the project can contact SCRD Parks Services at parks@scrd.ca or 604-885-6802.