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Master Gardeners

Program Contact: Mary Watts, Master Gardener Program Coordinator
206-543-0943 •
The WSU Extension King County Master Gardener program provides a multitude of resources for home gardeners. This gardening information is available to the public and is

  • research-based and
  • focused on environmentally friendly and sustainable gardening practices

Following is a list of resources and FREE information provided by Master Gardeners in King County.

  • How to Become a Master Gardener Volunteer – Applications for the 2021 training are available online August 1, 2020.
  • e-Clinic: Send your gardening questions via email to a Master Gardener at
  • Gardening Tip Sheets. These tip sheets on a wide range of topics specific to gardening in King County are available for download.
  • 2019 Plant Clinic Schedule: Visit a Master Gardener clinic for answers to gardening questions and diagnosis of plant problems. This list of Plant Clinics in King County will be updated in early spring 2020.
  • Demonstration Gardens: Master Gardeners are available to discuss and demonstrate environmentally sustainable gardening practices.

Free Gardening Classes and Talks

King County Master Gardener Plant Sales [Dates & Times, details]

Locations for all King County clinics and gardens with updated hours for 2019

Master Gardener Foundation of King County

The Foundation is a 501(c)(3) nonprofit that provides the financial support for the WSU Extension Master Gardener program in King County in its efforts to provide research-based education about urban horticulture to the residents of King County. The Foundation website,, publishes information about Master Gardener activities, resources, newsletters, continuing education opportunities, plant sales and Foundation-related information.