Master Gardeners™ are trained volunteers, educated through OSU Extension Service to offer the local community Reliable, Relevant and Reachable gardening information and education opportunities.

Reliable: our gardening advice and education is science-based.

Relevant: customized information for your gardening situation.

Reachable: call us on the phone, email us a question, or visit with us at markets or gardens in your community.

Check it out! See our Spring Garden Fair page for more details about this coming event – you don’t want to miss it!

Free Lectures

We hold lectures on the 2nd Monday of each month (except July and August) at the Milwaukie Center.  Lectures are free and open to public.

May 13, 2019
Landscape Mulches: The Good, The Bad, and The Really, Really Ugly Linda Chalker-Scott, PhD, WSU,,


Mulches are an ideal alternative to chemical weed control. If correctly chosen and applied, mulches can not only reduce weed invasions, but also reduce management costs by improving water and air movement, moderating soil temperatures, improving soil structure and nutrition, and enhancing beneficial microbes and insects. How can you decide which mulch is best for your landscape? This seminar will teach you how to make these decisions.

See  the Monthly Lectures page for more information

Calendar of Events – Master Gardener happenings coming soon

Washington County Master Gardeners Gardenfest Plant Sale

Saturday April 27, 8 am – 2  pm. PCC Rock Creek Campus – 17705 NW Springville Road, Portland. Click for more information

Spring Garden Fair

Saturday and Sunday, May 4 & 5 at the Clackamas County Event Center.  Visit for all the details!

Multnomah County Master Gardeners’ Incredible Edibles Plant Sale

Saturday May 11, 10 a.m.- 3 p.m. at the Westminster Presbyterian Church, 1624 NE Hancock St.  Click here for more information

Clackamas County Master Gardeners are the folks who put on the annual Spring Garden Fair, bringing together over 7,000 gardeners with over 150 plant and garden-art vendors.