Ask a Master Gardener:

Extension Office phones

and address information


Amsonia hubrichtii

Thread Leaf Amsonia

Fall Color



Master Gardenersare 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.


Do you want to become a OSU Extension Master Gardener Volunteer?

Registration for the 2015 Master Gardener program is open! Information and registration is available on the OSU Extension Service Metro area Master Gardener page. You may also call 503-650-3118 for information.

Please complete the online interest form if you want to be contacted about the Master Gardener program.

Click here for more information on becoming a Master Gardener: What does it take to be a Master Gardener Volunteer?

Free Lectures

We hold free lectures on the 2nd Monday of each month (except July and August) at the Milwaukie Center (5540 SE Kellogg Creek Drive in Milwaukie).  Lectures are open to the public and start at 7 p.m.  Each lecture features an expert presentation about an interesting gardening topic. If you have a physical disability that requires special considerations in order for you to attend any event/activity, please notify the metro Master Gardener program at 503-655-8631 or send an e-mail to

December 8, 2014

Designing & Equipping the Home Greenhouse, Rick Warner, Sturdi-built Greenhouse Mfg, Portland, Or

Rick Warner will give an overview of considerations to be made when planning a home greenhouse, including location, materials, heating, cooling, lighting and ventilation.


Rick Warner is the owner and manager of Sturdi-built Greenhouse Mfg. in Portland.  Sturdi-built is a small, family business and one of the first builders of residential greenhouse kits in the Pacific Northwest. 

Click here for the Monthly Lectures Calendar

Free Events

We actively reach out to our community, sharing our knowledge through free events throughout the year.


10-Minute University™

Master Gardeners offer free 10-Minute University™ classes throughout the year.

Click here for a list of upcoming sessions.


Clackamas County Master Gardeners are the folks who put on the annual Spring Garden Fair, bringing together over 10,000 gardeners with over 180 plant and garden-art vendors.


Oregon State University Extension Service offers educational programs, activities, and materials without discrimination based on age, color, disability, gender identity or expression, marital status, national origin, race, religion, sex, sexual orientation, or veteran's status. Oregon State University Extension Service is an Equal Opportunity Employer.

The Clackamas County Master Gardeners Chapter was recognized as a Distinguished Friend of the College in recognition of our continued support of the college scholarship program. To read more, please click here.




last updated on November 21, 2014


Spring Garden Fair

Saturday and Sunday May 2 & 3, 2015