Skip to content

WSU’s Soils and Soil Testing

From Washington State University. Includes resources on soil testing and soil test interpretation as well as a set of 29 slides that show the major soil types of the Puget Sound area.

A Guide to Collecting Soil Samples for Farms and Gardens

From Oregon State University. This publication gives concise discussions on why, when, and where to collect your soil sample, and straightforward instructions for how to take the soil sample and choose a lab to perform the analysis.