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Washington State University

Our office is moving in July!

NOTE: June 30, 2022 will be the last day we will be open so we can pack and move.

Research projects and community programs scheduled outside of our physical office will continue as planned. If you need to reach us, email us ( or leave us a message on our voicemail, (360) 778-5806, so we can respond to you as soon as possible.

We will open at our new location on July 18th at: 600 Dupont Street, Bellingham, WA

Soil Testing

List of local labs: Local Labs Soil Testing (pdf)

gloved hands holding soil Soil sampling a great tool for home gardeners to assess conditions of their landscape beds, vegetable beds, lawns, etc.

A good soil testing program can be divided into four parts:

1 – Taking the sample
2 – Analyzing the sample
3 – Interpreting the sample analysis
4 – Making recommendations

We can assist with how, when, and why to test your soils.

Read this to get started: Soil Testing for Home Gardeners

How to Collect a Soil Sample (video):

How to collect soil samples:

Once you take a sample, you must send it to a laboratory for analysis. NOTE: WSU maintains a database of labs, inclusion of a laboratory or consultant in this list does not imply any endorsement by WSU.

TIP: We recommend calling the local labs to make sure things have not changed recently due to COVID-19.

Interpreting Results: After you receive results from the lab WSU Whatcom can assist you with guidance. Contact the WSU Whatcom MG plant clinic at:

Master Gardener Program

Cultivating plants, people and communities since 1973.


Program Contact:

Beth Chisholm, Program Coordinator
(360) 778-5811

Program Priorities Map

Helpful Resources:


Upcoming Events:

Due to the COVID-19 outbreak, some events may be postponed or cancelled.

Partial map of Hovander Gardens

Hovander Demonstration Gardens Brochure