COS 162-6 - Designing and managing biodiverse streetscapes: key lessons from the City of Melbourne

Wednesday, August 17, 2022

11:15 AM – 11:30 AM EDT

Presenting Author(s)

LH

Lee Harrison

Ecologist
City of Melbourne, Australia

Slides (PDF)

Coauthor(s)

HT

Hui-Anne Tan

City of Melbourne, Australia
JN

Jeff Nelson

City of Melbourne, Australia
ML

Maggie Lokic

City of Melbourne, Australia
JR

John P. Rayner

University of Melbourne, Australia
CT

Caragh G. Threlfall

University of Melbourne, University of Sydney, Australia
JB

Jessica Baumann

University of Melbourne, Australia
AM

Adrian Marshall

City of Melbourne, Australia
MC

Mark Callow

City of Melbourne, Australia
JP

Jessica Peeler

City of Melbourne, Australia
RK

Rebecca Korossy-Horwood

Naturelinks Landscape Management Pty Ltd, Australia
CN

Chris Nicholson

Serco Australia Pty Ltd, Australia
NW

Nicholas S.G. Williams

Professor
University of Melbourne, Victoria, Australia

Background/Question/Methods

Underutilised public spaces such as streetscapes offer substantial opportunities to integrate habitats that increase biodiversity into existing urban landscapes and create more ecologically connected cities. Cooperation and collaboration from diverse stakeholders are paramount to achieving this because growing conditions for plants in streetscapes are often much harsher than remnant habitats or urban parks and little is known about the horticultural performance of many native understorey species in these novel urban environments. This talk will describe how the City of Melbourne collaborated with researchers from the University of Melbourne to develop and test a suite of understorey plant species to increase streetscape biodiversity. To do so, we selected species using criteria from a horticultural planting guide which guided the design and creation of four streetscape plantings within the municipality. Here, we document the process and discuss lessons learnt from this project to assist other cities to design, construct and maintain streetscapes with successful, cost-effective plantings that improve urban biodiversity and aesthetic value.

Results/Conclusions

Key to the long-term success of these biodiverse plantings was thorough soil preparation and weed management before planting, and the implementation of a clear, ecologically sensitive management plan. To support this plan, suitably qualified and experienced landscape maintenance staff were essential, particularly those with horticultural knowledge and experience with indigenous and native plant species. Our project highlights the often conflicting needs of local authorities and ecological researchers and the necessary trade-offs needed to meet realistic goals and achieve successful project outcomes for creating more biodiverse urban landscapes.