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Coronavirus COVID-19

COVID-19 Advisory: WSU Extension is working to keep our communities safe. All Extension programming is being conducted consistent with the latest official state guidance. WSU Extension county offices and WSU Research & Extension Centers are following protocols for vaccination, masking, distancing and hygiene. If this office is not open to the public, we are available during normal business hours via email, phone, and web conference.

WSU Master Gardener Program

Program Contact: Cori Carlton, Master Gardener & Master Recycler Composter Program Manager
(360) 867-2162 •

Do you have a gardening, composting or recycling question? 2022 WSU Master Gardener Training Information

Who are the WSU Master Gardener Volunteers?

We are a volunteer service gardening organization – cultivating plants, people, and communities since 1973.

Our Thurston County program is part of the statewide WSU Extension Master Gardener program which combines horticulture training and public service. WSU Master Gardener volunteers are trained and certified as community educators to provide professional, unbiased, researched-based home gardening and horticulture information to the public through the following avenues:

WSU Master Gardener Volunteer Training

  • Are you interested in becoming a WSU Master Gardener volunteer?  Learn more about what WSU Master Gardener volunteers do and how to become one on our training page.

WSU Master Gardener Program activities for our Thurston County community

WSU Master Gardener Program services and online resources for our Thurston County community

Information for Current MG & MRC Volunteers

Click here to go to TOSS (password-protected)

Directions on how to use Zoom for a MG or MRC Meeting/Activity. Using Zoom for a MG or MRC Meeting (pdf)

2021 Home Horticulture students – click here for quiz answers (password-protected page)

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“WSU Master Gardener Program of Thurston County”

Do You Have a Gardening Question?

Do you have a plant eaten-up by bugs or diseases? Maybe you have a plant or weed you cannot identify? Or, you have a spot in your garden and you need advice on what to plant? That’s where the WSU Master Gardener and Master Recycler Composter volunteers of Thurston County can help.

Gardening/Composting/Recycling Question/Answer Clinic –


Our WSU Master Gardener and Master Recycler Composter volunteers are answering your questions via email only.

If you have a question please email it to:

NOTE: We are here to help, but wanted to let you know that we are receiving a larger than normal volume of questions. Our certified volunteers are working hard to answer your questions in a timely manner. We appreciate your patience and your desire for wanting accurate gardening/composting/recycling information. We look forward to serving you.

In-person Question/Answer Clinic at Thurston County Extension office is CLOSED

Our in-person and phone consultation question/answer clinic is currently CLOSED due to Governor Inslee’s January 11 Healthy Washington-Roadmap to Recovery proclamation to minimize public health risk during COVID-19. Once it is safe, we will post details of when we plan to reopen on this site.

The Gardens and Clinics are operated by WSU trained and certified volunteers. All services provided by Thurston County WSU Master Gardener and Master Recycler Composter volunteers are free to Thurston County residents. These volunteers can only provide information to home gardeners. Commercial farms and businesses need to contact Extension office for help, (360) 867-2162.





WSU Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local WSU Extension office. Persons will disabilities who require alternative means for communication or program information or reasonable accommodation need to contact Cori Carlton at 3054 Carpenter Rd. SE, Olympia WA 98503, 360-867-2162, at least two weeks prior to the beginning of training.