The Extension Service is here to serve the residents of Columbia County, providing knowledge from universities nationwide. We provide research-based information to families, youths, schools, agricultural producers, home gardeners, foresters and governments.

Our office offers a variety of programs, which include 4-H Youth Development, Home Gardening, Agriculture and Small Farms, Family and Community Health, Forestry & Natural Resources and Master Gardeners.


We publish three newsletters from our office:

If you would like to receive these newsletters by email or mail, please give the office a call.



Thinking of Spring?

Thinking of Spring

Check out this slideshow recap of Chip Bubl's presentation on Seeds from the St. Helens Library this month! And here is a document on Soil Temps for Seeds.

(Image: Urban Farmer Seeds)

Hours of Operation
8 a.m. to 5 p.m.

Closed Fridays from Noon to 1 p.m.


OSU Columbia County Extension

505 N. Columbia River Hwy

St. Helens, OR 97051

PH: 503-397-3462

FAX: 503-397-3467

For information on public transportation, visit the Columbia County Rider website.


We offer classes, workshops, opportunities for youth and adult volunteer activities:

Volunteer as a Master Gardener, Master Woodland Manager, or with the 4-H youth program

Nutrition education events

Home Garden educational events


Columbia County General State/County Resources

Juniper reduction alone won't be enough to restore habitat
Fndings have important implications for understanding how salmon navigate across the wide range of habitats they encounter
Oregon's Agricultural Progress
The research magazine for Oregon State University Agricultural Experiment Station
Ask an Expert logo
Ask an Expert
Addressing real-life questions with research-based answers... Ask an Expert at Oregon State University.
OSU Extension Catalog
The Catalog is the source for current, peer-reviewed, research-based learning materials published by OSU Extension.
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