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Washington State University

Master Gardeners of King County

Program Contact: KCMG Program Office
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

Explore this page and our website for more resources and FREE information available to the home gardener from the Master Gardeners of King County.


Become A Master Gardener

Asian woman clipping a pink rose
How to Become A Master Gardener
The online application filing for the 2022 class is now closed. Training classes in 2022 will use a combination of Zoom online and in-person sessions. Applicable COVID protocols issued by state, WSU or local authorities will be strictly followed. The next opportunity to apply for training for the Master Gardener Program of King County will be available in September 2022 for the 2023 training.

What's New?

More Complex Gardening and Nature Activities for Children and Youth
Find downloadable lessons on spiders, leaves, rain, pinecones, bees, seeds, flowers and other subjects about gardening and nature!

bird nest with three blue eggs
Simple Gardening and Nature Activities for Children and Youth
Bug Races, Scavenger Hunts, Tape Bracelets and more. Activity sheets to download.

Gardener with a box of assorted colorful vegetables
King County Master Gardeners Speakers Bureau
Would you like to schedule a Washington State University Extension Master Gardener to speak to your gardening club or other group? WSU Master Gardeners do presentations on a variety of gardening topics as part of their mission to empower and sustain diverse communities with relevant, unbiased, research-based horticulture and environmental stewardship education. Read more.

Educational Resources

Annual border at the Bellevue Demo Garden
Bellevue Demo Garden Saturday Workshops
Topic include new plants and methods as well as current science-based research and techniques for the Pacific Northwest gardener. Saturdays from 9:30 to 10:30 a.m. beginning January 22 through mid-October via Zoom. Register for workshops on the Foundation website.

Variety of vegetables
Growing Groceries Gardening Classes
Our 2022 Growing Groceries class topics range from favorites like tomatoes and small fruit to seed starting, weeds, water and pest management. Classes will be held on select Wednesday evenings 7:00 – 9:00 p.m., January 19 through June 29, via Zoom. Register for the 2022 classes on our Foundation website.

Ask A Master Gardener

Ask A Master Gardener graphic
Email Clinic
Master Gardener Email Clinic – Gardening Questions? Send your gardening questions via email to a Master Gardener at

Gardening Tip Sheets

Master Gardener teaching girl to garden
Climate Friendly Gardening – Tip Sheet #14
Gardeners can help reverse the accumulation of heat-trapping gases by growing plants and building healthy soils. Find out how.

Houseplants – Tip Sheet #15
It is important to pick plants that fit your environment and your ability to care for them. First evaluate your environment to find a match for your plant’s needs and what you can and will offer.

Tulips in many colors
Gardening Tip Sheets
Our gardening tip sheets provide information on a wide range of topics specific to gardening in King County and are available for download, free. Check out all of our tip sheets

Demonstration Gardens

Soos Creek Botanical Garden and Heritage Center
Demonstration Gardens
In each of these demonstration gardens, the community can see firsthand the types of plants that grow well in our area and learn recommended planting practices and overall garden care.




Feature image by Jeswin Thomas. Small image of hellebore by Alicja.


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Spring tulips

Gardening Classes

Many of our classes are now available online. Check here for information about the 2022 Bellevue Demo Garden workshops, the Growing Groceries classes and other KCMG Education activities.

Clinics and Gardens

Find all the King County Clinic and Garden Locations – Our in-person clinics are operating in 2022. You may also connect with Master Gardeners year-round through our Email Clinic.

Master Gardener Foundation of King County

The Foundation is a 501(c)(3) nonprofit which raises funds for the financial support of the WSU Extension Master Gardener program in King County. These funds help the program meet its mission to provide research-based education about urban horticulture and sustainable gardening to the residents of King County. The Foundation website,, publishes information about fundraising activities, resources, newsletters, educational opportunities, plant sales and Foundation-related information.