Courses Taught

Living Green Infrastructure - starting semester May 2016
Gaia College - Online Instructor


Organic Master Gardener, Gaia College
Art of Online Facilitation, Gaia College
Masters degree in Landscape Architecture, University of BC
Bachelors degree in Politics, UCSC
ISA Certified Arborist and Certified Tree Risk Assessor


My work involves helping people connect with nature. I do this as a writer, designer and community ecologist.

I started my working life in journalism. I was based for 10 years in Asia reporting for global media including the International Herald Tribune, the Economist, CBC Radio and many others. I still report and write, although my focus is now more on books. My latest publication, Vancouver Tree Book, made the BC Books Bestseller List. I also wrote Guerrilla Gardening: A Manualfesto, Urban Agriculture: Ideas and Designs for the New Food Revolution and The Earth Manifesto. If all of that sounds too serious or even dire, it's not meant to be, and I've also written two novels including a comedy called The Miracle Tree.

I work in environmental design and consultation through my company EcoUrbanist. Whether providing a site design or advising on policy my strategy is always rooted in the fact that an ecological approach to healthy development is best for now and future generations. I also head a small environmental nonprofit organization called Tree City which aims to "help people and tree grow together." I also now appear regularly on the CBC North by Northwest radio show as its "urban forest correspondent", and blog about trees for Vancouver Is Awesome.

I am also a public speaker and an occasional teacher for Simon Fraser University's Continuing Studies program. 


David Tracey 

Courses Taught

Plant Knowledge 1 - Natives, online
Plant Knowledge 2 - Ornamentals, online
Growing Food Organically, online
Organic Horticulture Specialist, online
Organic Master Gardener, online
Ecological Landscape Design, co-facilitator online
Basic Botany, Seneca College
Gaia College - Online Instructor


SOUL Certified Organic Land Care Professional, 2013 - present
Master Gardener, 2008 - present
Board member of Canadian standards association – Society for Organic Urban Land Care, 2012 – present
Professional Home Economist, 1990 to present
College Teacher of various diploma and certificate food, nutrition, and horticulture courses for Kemptville College, Algonquin College, Humber College, Centennial College, St. Lawrence College, Canadian Coast Guard College

Active memberships in the following professional associations

Canadian Nursery Landscape Association (CNLA)
Landscape Ontario – CLP certification will be complete in 2016
Master Gardeners of Ontario (MGOI)
Society for Organic Urban Land Care (SOUL)
Canadian Home Economics Association


Professional Organic Horticulturist, Humber College, 2011
Teachers of Adults Certificate - Designing, Developing and Facilitating Online Courses, Algonquin College, 2006
Horticulturist Certificate, University of Guelph, 2002
Certified Plantsman, University of Guelph, 1996
Certificate in Small Scale Poultry Production, Kemptville College of Agricultural Technology, 1990
Certificate of Organic Gardening, Kemptville College of Agricultural Technology, 1988


Astrid Muschalla works as a Certified Organic Land Care Professional in business, consulting and education – her company is AstridKnowsPlants.ca. Emphasis is on ecological landscape design, Astrid has over 20 years experience working on private and public lands, most notably, consulting on organic maintenance practices for Corktown Common Park, PanAm Games Athletes Village, Toronto, in 2014 and 2015. Astrid’s work has been nominated twice for the Urban Habitat Stewardship Award from Evergreen Canada on a high profile waterfront Parks Canada project working with employees and temporary staff to establish a Carolinian Park and Arboretum from barren railway lands. This work involved training, educating staff and the public on the requirements for indigenous plants and developing and maintaining healthy ecosystems. As a volunteer, with the High Park Stewardship Program in Toronto, she educated members, and public on native plants & propagation from 2008-2012. Astrid’s gardens have also been featured on Doors Open, various community garden tours, and CTV's Garden of the Month. Astrid worked as a design judge for Communities in Bloom. Astrid is the part-time coordinator for Seneca College’s Organic Land Care - Levels 1, 2 and 3. 



Ken 200

Courses Taught

Rainwater Harvesting & Management - online
SketchUp Pro for Landscape Design - online
Ecological Landscape Design - online, co-facilitator
Gaia College, online facilitator


University of Guelph, Ridgetown Campus, College Professor
Landscape Architect and Educator (retired)


As a ‘retired’ landscape architect and educator, Ken relocated to Vancouver Island from Ontario in 2010. His four-plus decades in land planning and/or education included major land development projects and seventeen 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 SketchUp for Landscape Design for Gaia College, which are also offered through Royal Roads University (BC), and Humber and Seneca Colleges (ON). With CANARM, Ken created and delivered a Canadian rainwater harvesting certification course, now superseded by the ARCSA Accredited Professional (AP) program.

Other ‘hats’ include trainer for ARCSA; the previous position of Executive Director for the Society for Organic Urban Land Care; and co-facilitator for Ecological Landscape Design (Gaia College). As a consultant, Ken undertakes landscape and site planning, along with rainwater harvesting system planning 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.




Heide Portrait small


Master's degree in Sustainable Agriculture
Diploma in Horticulture (Landscape Design, Installation & Maintenance)
Graduate Diploma in Sustainable Agriculture
SOUL Certified Organic Land Care Professional
CNLA Certified Horticultural Technician (retired)
ISA Certified Arborist (retired)
IIABC Certified Landscape Irrigation Auditor (retired)
Landscape Inspection Certificate
Provincial Instructor Diploma with Post-Secondary Endorsement
BC Landscape & Nursery Association Educator of the Year, 2007
Organic Master Gardener
Master Woodland Manager
Naturescape Ambassador
Co-founder and past chair of the Society for Organic Urban Land Care (SOUL)
Author of Working with Nature - Shifting Paradigms (book), The Essence of Organic Gardening - Seeing and Doing Things Differently (book) and What pesticides really do in your garden (DVD)


Heide worked many years in her landscape design and installation practice. She enjoyed creating all these beautiful, thriving gardens - from the tiniest urban backyard to 10 acre rural estates. Two of "her" gardens were even featured on the CBC "Canadian Gardener" television show with David Tarrant (a Canadian gardening celebrity).

As an educator she developed and taught seminars, short courses, and comprehensive professional development programs in all aspects of horticulture. Her audience included landscape professionals and arborists from the private and public sector, horticulture students, master gardeners, high school students, and the general public. Her focus was the continuing curriculum development for Gaia College, but she still taught occasional intensive professional workshops for landscape professionals.

Heide was very grateful to have been blessed with such an interesting professional life. 

Heide stated: "When we choose to dwell in joy and love every day, we lead enchanted lives and are so much more effective."...words to live by!

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