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UI Extension, Canyon County offers classes, resources, expertise and unbiased advice in horticulture, including home and community food production and sustainable lawns and landscapes.

Idaho Master Gardener

Applications are NOW being accepted for the 2020 Master Gardener Program. Download the application packet in the link below.

Anyone with an interest in horticulture and helping others can become an Idaho Master Gardener. Contact the UI Extension, Canyon County office to learn more about the Master Gardener program.

Plant Clinic — Open May to September

Our plant clinics are designed to help address concerns in gardens or landscapes. Idaho Master Gardeners are available in our office on Monday and Wednesday afternoons, 1-4 p.m., and Friday morning, 9 a.m. to noon, May through September. 

Samples can be brought to our office Monday through Friday, 8 a.m. to 5 p.m. Samples will be looked at during Plant Clinic and you will be contacted for more information and/or recommendations. Photos of plants can also be emailed to Canyon County's Idaho Master Gardener.

This is a free service, just another way that UI Extension gives back to the community. Download Plant Clinic Postcard

Check us out on Facebook at or our blog at

  1. Idaho Master Gardener
  2. Junior Master Gardener Requirements (PDF)
  3. Buy Noxious Weeds book from Extension Publications
  4. Email Nic


University of Idaho Extension, Canyon County

Mailing Address:
501 Main St
Caldwell, ID 83605

Phone: 208-459-6003

Fax: 208-454-6349



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