2022 Symposium Speakers
TREENET Symposium 2022 features experts in their field discussing a range of topics in urban forestry.

Jack Collard
Jack is a young and proud Whadjuk-Ballardong Nyoongar man from Boorloo (Perth). In 2018 he was awarded a MADALAH tertiary scholarship to study at the

Lilith Tremmery
Lilith is a Horticulturist at the Adelaide Botanic Gardens, currently tending to the First Creek Wetland and International Rose Garden. Outside the Botanic Gardens she

Dr Greg Moore OAM
Greg is a Senior Research Associate of Burnley College, University of Melbourne, where he was Principal from 1988 to 2007; he was Head of the School

Pieter Taylor
Pieter was Cairns Regional Council’s first arborist when he started in 2007; as Principal Arborist he now leads a team of five others. Pieter earned

Leanne Gillies
Leanne is an expert horticulturist and nurserywoman with over 25 years of experience in commercial plant propagation and production. In her role as Research and

Shelley Shepherd
Shelley is a Director of Urbaqua, a not-for-profit environmental organisation that works to support and deliver water and environmentally sensitive outcomes in Western Australia. She

Ruby Wilson
Ruby is an experienced horticulturist and arborist, having worked in local government in Victoria before moving to Tasmania where she is Program Leader of Arboriculture
Phil Holzknecht
After studying history and anthropology during his early decades in Papua New Guinea Phil relocated to Queensland and completed post-graduate studies in agricultural science. His

Tim Jarvis AM
Tim is an environmental scientist, conservationist, author, film maker and adventurer with Masters degrees in environmental science and environmental law. He is a Senior Associate

Professor Robert Hill
Professor Robert Hill is a Professor in Botany at the University of Adelaide. He graduated from the University of Adelaide firstly in 1981 with his

Simon Strauss
Simon attended his first international Clean Air conference at Melbourne University as a student in the 1970s. After working in the UK and Europe in the

Kelly Bramhill
Kelly Bramhill has worked at the Botanic Gardens and State Herbarium since 2015 in a variety of roles in the Public Programmes team. Kelly has

Matthew Laurence
Matthew is head of the PlantClinic at the Royal Botanic Gardens, Sydney and operates a private consultancy company in Arboriculture based in Sydney. Matthew has

Mayor Michael Hewitson
Michael graduated from Adelaide University with honours as a microbiologist and as a Pilot Officer with the RAAF. He taught maths and sciences at State

Stefan Caddy-Retalic
Stefan is an empirical ecologist and environmental policy specialist who bridges government and academia. His current role is the Regional Coordinator for Resilient South, a

Geoff Connellan
Geoff’s expertise is focussed around urban horticulture water management. Following his work with the University of Melbourne, Burnley Campus, in research, teaching and outreach, he

David Jenkins
David is CEO of the Institute of Public Works Engineers Australasia (IPWEA), a role he has held for the past three years following experience in

Russell King
Russell is a civil engineer with a passion for integrated, sustainable green urban form and function. As Senior Assets Lead with the City of Unley

Ian McAlister
Ian has 33 years of experience in the design, construction and management of local government public open space, including five years as Manager Recreation and

Thomas Burke
Thomas Burke commenced employment with the Botanic Gardens and State Herbarium in 2018 as a trainee. His expert knowledge and understanding of best horticulture practice

Dr Dean Nicolle OAM
Dr Nicolle, from Adelaide in South Australia, has been interested in Australian native plants since childhood. By the age of 16 he was devoted to

Penny & Clive Blazey AM
Penny and Clive founded Diggers in 1978 where they pioneered the preservation of heirloom vegetable seeds and garden-worthy ornamental flowering plants. In 2011, Clive, Penny

James Smith
James has an Honours degree in zoology and his career started with the Queensland Museum in public education and fisheries research for the CSIRO. Following

Paul Winter
Paul Winter is Senior Horticultural Curator at the Adelaide Botanic Gardens. Every day he witnesses staff and visitors reap the benefits of decisions made 20,