Instructor Profiles

Ken Nentwig

Courses Taught

Ken 200

Rainwater Harvesting & Management - online
Landscape Design Basics with Sketchup Pro - online

Gaia College, online facilitator


University of Guelph, Ridgetown Campus, College Professor
Landscape Architect (retired) and Educator
Bachelor and Masters degrees in Landscape Architecture, University of Guelph


Transplanted to Victoria, BC in 2012, Ken was active as a landscape architect in Ontario for twenty-five years prior to his retirement. He taught at the Ridgetown Campus, University of Guelph from 1994 to 2010. Prior to the U of Guelph, Ken worked in landscape management, design, and construction, having graduated from Humber College in the first landscape technician and technologist courses there. Other project work included waterfront park masterplanning in Halton Region (Burlington to Hamilton) as part of a design team in 1985 and 1986; CAD training in Singapore in 1990; and skills development training with Skills Ontario, Skills Canada and World Skills, which took him to Brazil in 2006 and Japan in 2007.

Currently a trainer for the Canadian Association for Rainwater Management (CANARM) and the American Rainwater Catchment Systems Association (ACRSA), he has set up an awareness, training and certification course system across Canada. Ken also teaches an online SketchUp Pro course for landscape designers through Gaia College, and has been engaged in part-time apprenticeship training at the Pacific Horticulture College. Some community projects in conceptual landscape design, and project-based rainwater harvesting consultations, round out his professional activities on the Island.

Ken maintains two certifications, Certified Landscape Manager and Designer, and has been active in international certification committee work in previous years with CNLA and PLANET.