This week on ISAO's Roots and Rings, we have the profound honour of welcoming one of Ontario’s true pioneers in arboriculture — Ian Bruce.
Ian’s journey began in 1972 when he graduated from the Niagara Parks Commission School of Horticulture. After gaining early experience in landscape design, municipal parks planning, and project management, he found his calling in 1977 — and from that point forward, he helped shape the very foundation of modern arboriculture in Ontario.
For nearly five decades, Ian has worked as a tree climber, tree care company owner, consulting arborist, apprenticeship training program and curriculum developer, and for 22 years, as a program developer, coordinator, and faculty member at Humber College in Toronto. Generations of arborists have passed through his classrooms and job sites, many of whom continue to uphold his standards, discipline, and unwavering ethics.
Since 1984, Ian has served as a consulting arborist and expert witness, providing evidence in Ontario Court, before the Ontario Municipal Board, at TLAB hearings, in mediations, in client disputes, and even at coroner’s inquests. His expertise spans tree inventories and protection plans tied to development, forensic arboriculture and tree failure analysis, custom-designed support systems for mature trees, long-term heritage tree management — including retrenchment pruning — and the development of industry standards and best practices.
But perhaps Ian’s greatest legacy isn’t found in court transcripts or technical prescriptions. It lives in the arborists he mentored — professionals who don’t just practice tree care, but who “preach” the standards and ethics he instilled in them.
Today, we sit down with a man whose career has influenced not only how trees are managed in this province, but how arborists think, teach, and carry themselves. Please join us in welcoming Ian W. Bruce.