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


As a ‘retired’ landscape architect and educator, Ken relocated to Vancouver Island from Ontario in 2010. His five-plus decades in land planning and/or education included major land development projects and sixteen years with the University of Guelph, Ridgetown Campus, as College Professor. Since that time he has developed and facilitates online courses in Rainwater Management and in Landscape Design Basics with Sketchup Pro for Gaia College, which have also been offered through Royal Roads University (BC), and Humber and Seneca Colleges (ON). With CANARM, Ken created and delivered the Canadian rainwater harvesting certification course (CANARM), and is involved in facilitating the ARCSA training and ASSE rainwater certification in the US.

Other ‘hats’ include trainer for ARCSA; the previous position of Executive Director for the Society for Organic Urban Land Care; former Executive Director of CANARM; and previous co-facilitator for Ecological Landscape Design (Gaia College). As a consultant, Ken undertakes landscape and site planning, and rainwater harvesting system design and installations, in association with landscape contractors, builders, and rainwater specialists. Other interests include watercolours and pencil/ink sketching, and with his wife he is very active in their church.