Washington State University

Puyallup Research & Extension Center

The WSU Puyallup Research and Extension Center combines research, education and community outreach to provide innovative science, knowledge and over 30 programs across our state, country and world. Enriching the lives of families and improving our environment and economy, WSU Puyallup staff are dedicated to delivering answers that address current issues and vital needs of the future.


WSU Organic & Sustainable Agriculture Courses

Leading the way and making a positive difference with alternative agriculture in technology, production management, and education.

Explore both our undergraduate and graduate degree programs and certificates. 

WSU Education in Organic & Sustainable Farming



Puget Sound’s blue waters are better because of the crimson and gray

Puget Sound is one of the state’s natural jewels. Whether sublimely calm and blue on a summer day or tempestuous and frothy during a winter gale, Puget Sound and its beautiful, iconic landscape draws you in and makes you want to stay.

The inland waterway has always been a place where humans like to gather. Home to over 50 named tribes, the Sound and its many rivers and tributaries supplied (and supplies) food and sustenance to the Salish whose ancient villages and long houses dominated the shoreline.

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Christmas Tree Care

Time to get a Christmas Tree? Whether it's a 12-foot Noble or a Charlie Brown variety, all trees need proper care. Gary Chastagner, a WSU Puyallup plant pathologist, explains the best ways to keep your tree fresh.

Gary Chastagner received his Ph.D. in plant pathology from the University of California-Davis and has worked at WSU Puyallup since 1978. His research and extension program includes the management of diseases on ornamental bulbs, cut flowers and Christmas trees, management of sudden oak death, and factors that affect the post-harvest quality and safety of cut Christmas Trees. Contact Gary at chastag@wsu.edu.

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WSU research tucked inside traveling Capitol Christmas Tree

Tucked within the massive Capitol Christmas Tree headed for Washington, D.C. are three tiny sensors most people will never see. They will collect information on how well the tree holds moisture during its 25-day journey from Washington state.

Researcher Katie McKeever placed the data devices deep inside the canopy of the 88-foot-tall Engelmann spruce last weekend as it was loaded onto a flatbed trailer on the Colville National Forest in Pend Oreille County.

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Master Gardeners love their work!

Whether it's explaining the best planting techniques for certain flowers, shrubs or vegetables, teaching people how to care for their gardens or educating others how to reduce the impact of invasive species, these knowledgeable volunteers are here for you. WSU Master Gardener Interim Program Leader Nicole Martini says there's still time to get dirt on your hands before the weather gets too cold and wet.

Nicole Martini earned a Master of Science in Horticulture from the University of Georgia and a Bachelor of Science in Landscape Architecture from the University of Idaho. Before becoming state lead for the Master Gardener Program she coordinated the WSU Extension Pierce County Master Gardener Program for six years. She also has two years of experience with the University of Georgia’s Master Gardener Program as an Extension Agent in Urban Horticulture. If you would like to learn more about your local Master Gardener county program or take a class to become a Master Gardener visit mastergardener.wsu.edu/program/county/

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Finding the most effective way to compost is crucial to Andy Bary.

As a soil scientist at WSU Puyallup he and his colleagues train compost facility operators on the latest techniques to prepare, cure, sample and test compost using yard waste, manures and other materials. This week over 40 industry professionals, regulators and compost enthusiasts from throughout the country are learning more about compost infrastructure, odor management and how to resolve business challenges.

Andy Bary brings over twenty years of soil science to his work at WSU Puyallup. He received his M.S. in Agronomy at WSU in 1986 and manages field research on land application of biosolids, animal wastes and composts. In addition Andy conducts on-farm research and supervises laboratory and field personnel.

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Plant or insect issues?

Visit Jenny Glass, our WSU Puyallup Plant Diagnostician.

Jenny brings more than 13 years of expertise to solve plant and insect problems. In addition to managing the lab, she also teaches plant pathology, diagnosis, and integrated pest management strategies throughout western Washington.

You can visit Jenny with your plant or insect specimen Monday through Friday from 9:00–3:30 at the WSU Puyallup Plant Clinic. She can be reached at jennyglass@wsu.edu or 253-445-4582. Diagnostic services range from $25.00–$40.00 depending on the needs of the sample.

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Creating Cleaner Water Vital to WSU Puyallup Researchers

Finding a solution to toxic highway runoff is critical to a group of Washington State University researchers and the environment. Using a method known as “soil bioretention” scientists at WSU Puyallup Research and Extension Center are testing collected runoff to measure the effects on fish and other aquatic life.

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The Washington Stormwater Center Wins National Video Award for Treating Runoff

WSU Puyallup’s Lisa Rozmyn Project Producer

The Washington Stormwater Center (WSC) has received a prestigious national award for a video on a new way to treat runoff.

The Water Environment Federation awarded the top honor to the WSC in the Innovative Solution category for a low-cost treatment option for businesses managing heavy metals in their stormwater runoff.

“Businesses need stormwater treatment devices that work,” said Lisa Rozmyn, Business Resource Program Manager for the Washington Stormwater Center. “We hope this video will show people that effective stormwater treatment doesn’t have to be complicated and expensive, and that they can build it themselves for very little money.”

The video, produced in conjunction with the Port of Vancouver’s Matt Graves and Mary Mattix who invented the new bioretention method, details the process for removing zinc from stormwater runoff. Zinc, found in galvanized metal roofs, downspouts, tires, chain link fences and motor oil, contains toxins harmful to aquatic life and the environment.

The WSC, a collaboration between Washington State University and the University of Washington, provides tools for stormwater management by supporting municipalities, stormwater permittees, and businesses in their efforts to control stormwater and protect water quality.

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Upcoming Events

Please check our calendar or call 253-445-4501 for information regarding upcoming events at the Puyallup Research and Extension Center.

Other WSU Research and Extension Centers

Puyallup Research and Extension Center, 2606 West Pioneer, Puyallup WA 98371-4900, 253-445-4500, Contact Us