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Welcome to Benton-Franklin County Extension

Learn From The Experts

Our local programs include agriculture and natural resources, 4-H youth development, gardening and community horticulture, and food safety and preservation. In addition, Washington State University provides a broad range of consumer publications (link), online educational opportunities, and other statewide educational programs and technical assistance from four research and extension centers and 11 colleges.

County Programs

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2024 Garden Education Class Schedule

Each year our Master Gardeners host FREE garden education classes for our community. Find the full schedule here.

News & Events

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Don't miss the Master Gardener Plant Sale!

Let’s get growing! Join us at the 31st annual Master Gardener Plant Sale on Friday, May 10th and Saturday, May 11th. Great variety and prices. All plants are grown by local Master Gardeners. The plant sale is located at the outdoor roller rink at Highlands Grange Park, 1600 S. Union St., Kennewick.
Master Gardener video brought to you by our community partner, McCurley Subaru.

Benton Franklin Master Gardeners Earn International Award

Our amazing WSU Master Gardeners of Benton & Franklin Counties earned first place in the David Gibby Search for Excellence Award in Youth Programming for their work “Washington Working with Incarcerated Youth: Growing and Giving Back to the Community” Watch the video explaining this exceptional program.


We have Regional Extension Specialists and staff in three locations throughout Benton and Franklin counties.

Benton County

7102 W. Okanogan Place, Suite 102
Kennewick, WA 99336
(509) 735-3551
Open Monday – Friday
8:00am – 4:00pm

Specializing in:

  • Gardening & Master Gardeners
  • Food Preservation & Master Food Preservers
  • Animal Science

Benton County

620 Market Street
Prosser, WA 99350-1320
(509) 786-5609
Open Tuesday – Thursday
8:30am – 4:30pm

Specializing in:

  • Commercial Tree Fruit
  • Sprayer Technology
  • Grapes
  • Small Fruit

Franklin County

404 W. Clark
Pasco, WA 99301
(509) 545-3511
Open Monday – Friday
8:30am – 5:00pm

Specializing in:

  • 4-H
  • Family
  • Forage
  • Commercial Vegetables

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