Master Gardeners of Sarnia-Lambton
- Member group of Master Gardeners of Ontario Inc.
- http://mastergardeners.sarnia.com

Master Gardeners of British Columbia
- Based at the VanDusen Botanical Garden in Vancouver. Overview of activities, events, newsletters, and resources.
- http://www.bcmastergardeners.org/

Ontario Master Gardeners
- An independent nonprofit organization dedicated to providing horticultural information to the public.
- http://www.gardenontario.org/mas/index.php

Saskatchewan Master Gardeners
- The program was started in the Spring of 1989 and is administered by the Division of Extension at the University of Saskatchewan.
- http://gardenline.usask.ca/misc/master.html

Toronto Master Gardener
- Answers to questions about gardening in the Greater Toronto Area.
- http://www.civicgardencentre.org/mastergardenerboard.htm