Washington State University
Master Gardener Program



March 20 – 26, 2023

Seeds of a movement: 50 years ago, Master Gardeners began with WSU-trained volunteers | CAHNRS News | Washington State University

The Extension Master Gardener Program is one of the largest volunteer organizations in the country, with more than 86,076 volunteers in 49 states. There are around 4,100 Master Gardener volunteers in WA State.

The Program serves as a model for many other volunteer organizations, empowering diverse communities with relevant, unbiased, research-based horticulture and environmental stewardship education.  

National Master Gardener Week social media resources

We are your neighbors and members of your communities. Our Programs and Priorities inform our efforts to shape healthy communities and a healthy planet. We are actively engaged in teaching research-based gardening and environmental stewardship practices.

Our Priorities

Master Gardener teaching a group of people about drip irrigation.

Communities across Washington State face numerous environmental and horticulturally based challenges.

Learn more about our priorities.

Our Programs

Woman teaching youth about gardening.

Since 1973, Master Gardeners have been developing Programs to address the evolving needs of our communities.

Learn more about our programs.

Join Us

Couple standing behind a wheelbarrow full of garden debris.

When you become a WSU Extension Master Gardener volunteer you meet people with similar interests, learn research-based gardening practices and serve your community.

Learn how to become a Master Gardener.

Yellow aphids on a plant milkweed stem.

Garden Resources and Techniques

Hortsense is a compilation of fact sheets for managing common landscape and garden plant problems.

Pestsense fact sheets outline IPM strategies including cultural, mechanical, biological, and chemical methods.

Gardening in Washington State is a collection of peer-reviewed gardening publications.

General Gardening, WSU Extension provides a selection of downloadable gardening publications.

The USDA Hardiness Zone Map is the standard by which gardeners can determine which plants are most likely to thrive at a location.

WSU Master Gardener Advanced Education logo.

Advanced Education Conference

The WSU Advanced Education Conference is produced by the State Foundation and is open to the public. The conference provides significant WSU-approved Continuing Education to statewide Master Gardeners who serve our communities here in Washington State.

All garden enthusiasts are invited to attend the WSU Advanced Education Conference.

Image of hand watering seedling as it grows.

Help advance the mission

You will support a greener, healthier Washington when you give to the WSU Extension Master Gardener Program Endowment.

The WSU Extension Master Gardener Program is raising money to establish the first ever faculty chair fully dedicated to the WSU Extension Master Gardener Program.


Throughout this site there are links to documents of various file types.
Please contact our Statewide Program Leader if you require this information in a different format.