Washington State University Extension of

Benton & Franklin Counties

Avian Influenza Outbreak

the latest information from WSDA

Plant & Insect Problems

Get answers to your questions


Help us find these stink bugs

Extension Publications


Grow your own produce

Tree Fruit

Pest Management Laws and Info

Gardening Events

Learn from local Master Gardeners

Home Gardens

Ornamental & Landscape

Garden Tips

from Marianne Ophardt

Home Gardening in the Mid-Columbia

WSU Extension of Benton County is the best source for gardening information in the Mid-Columbia region. At this site you can access information on what plants grow well, gardening successfully with the region’s challenging climate and soils, solving plant and pest problems. We’re here to help answer your questions!  Just call or stop by our office.

Learn, Dig, Grow

Garden Problem Help


Additional Resources

Extending Knowledge - grey


Tell us how Extension has helped you garden


In 2014, we celebrate the 100th anniversary of the Smith-Lever Act, which established the Cooperative Extension Service. Extension engages people, organizations and communities to advance knowledge, economic well-being and quality of life by fostering inquiry, learning, and the application of research.

As part of Extension’s year-long celebration, we invite students, faculty, staff, alumni, and friends to share their reflections on how Extension programs, services, and people have enriched their lives.

Share your Extension gardening story with us!

Contact Extension

5600 W Canal Drive, Suite E
Kennewick, WA 99336

Office Hours:
Monday – Friday
8:00 a.m. – 4:00 p.m.
(closed 12:00 p.m. – 1:00 p.m.)


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Garden Problem Help

Garden, lawn or landscape problems?  Want to know how to grow?  Something bugging you?

We can help!

Visit our Master Gardeners Plant Clinics for free garden and plant problem advice.

Open May – October


Gardening Events


Benton & Franklin Counties, , Contact Us

Extension programs and employment are available to all without discrimination. Evidence of noncompliance may be reported through your local Extension office. Some WSU Extension web sites provide links to external sites for the convenience of users. These external sites are not managed by WSU Extension. Furthermore, WSU Extension does not review, control or take responsibility for the content of these sites, nor do these sites implicitly or explicitly represent official positions and policies of WSU Extension.
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