OSU Extension Office, Washington County
1815 NW 169th Place, Suite 1000 Beaverton, OR 97006
Gardening Questions?
- Extension Office Walk-in Clinic Hours: Mon thru Fri, 2:00 – 4:00 pm. Please call ahead: 503-821-1150 (option 0 for front desk) – to ensure they’re in the office.
- Visit our clinic booths which are at many of the local farmers markets.
- To ask your question online click here.


In collaboration with and in support of the OSU Extension Service Master Gardener Program, the Washington County Master Gardener Association (WCMGA) provides relevant, research-based education and outreach to the public about horticulture and household pests. This information promotes sustainable practices that minimize risks to human health and the environment. WCMGA sponsors a wide variety of gardening–related demonstrations, lectures, seminars and workshops in various Washington County Oregon locations. Most of our events are free and open to the public. The WCMGA is a 501c3 non-profit supported by hundreds of volunteers, who work to educate the public about sustainable, affordable gardening.