Yamhill County Extension

Red Clover in bloom.

2050 Lafayette Ave
McMinnville, OR 97128
United States

Office hours

Monday - Friday: 8:00 am-5:00 pm
Currently closed

Office fax


Office: 503-434-7517
Toll Free: 503-434-7517

Yamhill County Extension

Want to join 4-H? Have questions about canning, raising crops or livestock? Interested in gardening or starting a Small Farm? For these questions and more, check us out!  We are Oregon State University in your community!

Oregon State University Extension Service has a long history of serving Yamhill County, beginning in 1904 with the state's first 4-H program. We bring the research and resources of Oregon State University to you.

Master Gardeners at the Fairgrounds

Upcoming Events

Living on the Land workshop series

Yamhill County Extension Event

Thu, Sep 20, 2018 6:00 pm - Thu, Oct 18, 2018 6:00 pm
Living on the Land is a workshop series tailored for small acreage landowners and those new to managing land. There are 5 classes in the series. This program is sponsored by the OSU Extension Service...

Permaculture Tour

Yamhill County Extension Event

Mon, Oct 1, 6:00 pm - 8:00 pm
Permaculture Tour: Developing a Landscape that Promotes Natural Water Infiltration.

Septic & Well Management class

Yamhill County Extension Event

Tue, Oct 23, 6:00 pm - 8:00 pm
Well & Septic Management class

Forest Thinning Tour (RESCHEDULED)


Tue, Sep 25, 4:00 pm - 6:00 pm
A tour for woodland owners to learn about commercial thinning of plantation Douglas-fir. Rescheduled from Sept. 6th due to operator logistics.

Coming up Flowers!

Polk County 4-H Event

Sat, Sep 29, 9:15 am - 4:00 pm
Katie Paaso, former professional florist and knowledgeable fair judge will instruct on topics such as cut flower exhibits, flower arranging and bouquets.

Clackamas County 4-H Tack and Bake Sales

Clackamas County 4-H Event

Sat, Oct 20, 8:00 am - 2:00 pm
Support Clackamas County 4-H at the biannual sales at the Clackamas County Fair and Event Center in Canby. The Tack Sale features hundreds of vendors with new and used items for your barn and home. The Bake Sale has delicious items to take home. SERVICE animals ONLY.

Forest Management Plan Drop-in Help Session


Wed, Oct 24, 1:00 pm - 5:00 pm
Come in to get one-on-one help with your forest management plan.
Farmers market scene

Business Management: Record Keeping for Small Farms

OSU Small Farms Event

Thu, Nov 1, 2:00 pm - 5:00 pm
Are you managing your farm business? Or is your farm business managing you?
Fields in foreground, barn in front of mountain

Growing Farms: Successful Whole Farm Management

OSU Small Farms Event

Tue, Jan 22, 2019 6:00 pm - Tue, Mar 5, 2019 8:30 pm
Growing Farms: Successful Whole Farm Management provides farmers with the tools and knowledge needed to develop and manage a successful farm business. This course is intended for people who are considering starting a farm business, those within their first five years of farming and others who may be considering major changes to their farm business.

Oregon Ag Fest 2019

Linn County 4-H Event

Sat, Apr 27, 2019 8:30 am - Sun, Apr 28, 2019 5:00 pm
Regional Hands-On Event for 4-H Youth
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