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The WSU Extension King County Master Gardener Program

Cultivating plants, people, and communities since 1973
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Welcome to the WSU Extension King County Master Gardener Program

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Registration for Washington Green School is Closed

Green School offers two distinct options in its online course: one for individuals looking to enhance their gardening skills through research-based horticultural and environmental stewardship, the Washington Gardener course, and another for those who wish to take it further by becoming a WSU King County Extension Master Gardener Program volunteer.

Registration is closed for this year, but is scheduled to be open about August next year. Check back then or visit the Washington Gardener Certificate website to request an email reminder be sent to you when registration opens.

WSU King County Master Gardener Intern applications are closed for this year, but you can request an email reminder be sent to you when registration opens next year.

  • $275 – WSU Extension Master Gardener volunteer: Intern Training. Payment will be collected via an online payment site following acceptance by your local county. 
    • $125 – WSU Extension Master Gardener volunteer scholarship recipient (a limited number of sholarships are available): Intern training. Payment will be collected via an online payment site following acceptance by your local county and scholarship approval.  
  • $550 – Washington Gardener Certificate: For individuals seeking education with no volunteer requirement. Payment will be collected via online payment site.
  • $125 – WSU Extension Master Gardener volunteer: For currently certified volunteers who seek continuing education.

What we do:

Each year we train new volunteers, equipping them with foundational knowledge to become horticultural educators in their communities. Trained volunteers must continue their volunteer and educational development in subsequent years to give back to the community and stay abreast of current research and our ever-changing environment. Volunteer hours and learning requirements ensure that our Master Gardeners’ skills and knowledge are always up to date.

Our Volunteer Hour Requirements

WSU Extension Master Gardener Interns – 40 service hours must include:

  • 15 Answer/Plant Clinics hours, minimum, and
  • 10 Demonstration Gardens hours, minimum, and
  • additional service* hours, as needed, to complete a total of at least 40 service hours

Certified WSU Extension Master Gardeners:

  • 25 service* hours, and
  • 10 Continuing Education hours

Emeritus WSU Extension Master Gardeners:

  • 5 service* hours, and
  • 5 Continuing Education hours

*Note: Service hours may include any combination of Answer/Plant Clinics, Demonstration Gardens, Other Educational Delivery, Program Support, and Youth Outreach hours.

For questions about volunteer requirements and policies, please contact the Program Office at king.mg@wsu.edu.



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