City’s tree canopy reaches new heights
The City has increased its tree canopy from 20.8 per cent in 2017 to 22.1 per cent in 2026, reinforcing its commitment to expanding and protecting the local urban forest.
The milestone follows sustained efforts to retain mature trees, increase planting, and improve biodiversity throughout the City.
This work comes at a crucial time, with trees across Western Australia facing growing threats from climate change and invasive pests, including Polyphagous Shot-Hole Borer (PSHB).
City of Subiaco Mayor David McMullen said the City’s success was driven by proactive management and rigorous monitoring to retain mature trees, and an ambitious planting schedule.
“Where possible, PSHB-infested trees are actively treated and saved rather than removed,” he said.
“Tree retention and long-term tree health is consistently positioned at the heart of City projects. This approach is seen in initiatives such as the Duke Street raingarden, which features native tree species and measures to help actively improve nearby groundwater quality.”
An increased tree canopy delivers environmental, economic, and social benefits by cooling hotspots, supporting and improving biodiversity, creating habitats for local wildlife, and enhancing the liveability of our neighbourhoods.
Did you know?
Supporting local wildlife: In the past year alone, the City planted 200 banksia trees – a vital food source for endangered black cockatoos.
Resilient species: Newly planted tree species are selected for their resilience to PSHB and ability to withstand Perth’s hot, dry summer climate.
Biodiversity first: Plantings are intentionally diversified to support the long-term health and resilience of the City’s urban forest.