Metro area Master Gardener

Registration for winter 2019 Master Gardener training will open in November 2018.

Want us to contact you then? Sign up for our contact list.

See training details from 2018.  We expect our offerings will be similar in 2019.


Who we are and what we do

OSU Extension Service Master Gardeners are trained through OSU to offer the public ReliableRelevant 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.

Mission statement

We provide relevant, research-based education and outreach to the public of Clackamas, Multnomah, and Washington counties about horticulture and household pests. This information promotes sustainable practices that minimize risks to human health and the environment.

Upcoming Events

OSU MG Study Group: Diagnostic Show & Tell*

Metro area Master Gardener Event

Mon, Aug 6, 1:00 pm - 3:00 pm
This event is not open to the public. It is only for Master Gardeners. 

This event is lots of fun and a great way for you to work on your diagnostic skills in a relaxed, cooperative environment. It is an informal gathering of Master Gardeners. We bring our own samples of plants, plant parts, insects or spiders to the session. We mill about the room working together on either diagnosing the problem or identifying the sample (or both).

*Indicates Master Gardener Continuing Education Credit.

Five Remarkable Women, Five Remarkable PNW Gardens - Monthly Lecture Series

Metro area Master Gardener Event

Mon, Sep 10, 7:00 pm - 8:00 pm
Join us on for a presentation by Donald Olson, author of the new bestselling guide, The California Garden Tour—The 50 Best Gardens to Visit in the Golden State. Donald’s talk, “Garden Goddesses: Four California Women and their Legendary Gardens,” is an informative and entertaining introduction to four remarkable women who created gardens that are today among the greatest public gardens in the world.

Learning Garden Open House- In the Garden Series*

Metro area Master Gardener Event

Sat, Sep 15, 10:00 am - 1:00 pm
Tour the Master Gardener Learning Garden and FREE workshops held onsite.
*Asterisk indicates Master Gardener continuing education credit.

Seeds: Sowing/Harvesting/Saving- In the Garden Series*

Metro area Master Gardener Event

Sat, Sep 15, 10:00 am - 11:00 am
Join OSU Master Gardener, Sarah Gramm Wolf, to learn what the seed packets don’t tell you when planting seeds; heirloom varieties and seed harvesting (when to harvest, how to clean the seeds); seed saving (storage conditions); and do-it-yourself viability testing before planting your saved seeds. Pioneers brought their saved seeds with them when they crossed the Oregon Trail ... the tiny, mighty seed!

*Indicates 1-hour Master Gardener continuing education credit.

Winterize: Putting your Garden to Bed- In the Garden Series*

Metro area Master Gardener Event

Sat, Sep 15, 11:00 am - 12:00 pm
Fall signals the coming of our winter months and the time to prepare the garden for cooler, wetter days. Join OSU Master Gardener, Sue Ryburn to learn about steps to protect your plants, take advantage of the indoors for some garden tasks, prepare for spring and also support the ecosystem in your garden.

*Asterisk indicates 1-hour Master Gardener continuing education credit.

Creating a Hellstrip Garden - From Sod 2 Super!- In the Garden Series*

Metro area Master Gardener Event

Sat, Sep 22, 10:00 am - 12:00 pm
Want to reclaim an under-used portion of your yard? Curious about the term "Hellstrip" and if you have one?  This session answers these questions and more. Come learn about site preparation, plant selection and design, planting techniques, water concerns, and maintenance for hellstrips.  If possible, we will have some hands-on activities in the garden.

*Asterisk indicates Master Gardener continuing education credit.

OSU MG Study Group: Diagnostic Show & Tell*

Metro area Master Gardener Event

Mon, Oct 1, 1:00 pm - 3:00 pm
*Asterisk indicates Master Gardener continuing education credit.

This event is not open to the public. It is only for Master Gardeners.

This event is lots of fun and a great way for you to work on your diagnostic skills in a relaxed, cooperative environment. It is an informal gathering of Master Gardeners. We bring our own samples of plants, plant parts, insects or spiders to the session. We mill about the room working together on either diagnosing the problem or identifying the sample (or both).

Earthquakes in Northwest Oregon - Monthly Lecture Series

Metro area Master Gardener Event

Mon, Oct 8, 7:00 pm - 8:00 pm
In the Pacific Northwest of the US, the Juan de Fuca plate is being subducted under the North American Plate at the Cascadia Subduction Zone. What does this mean? Dr. Scott Burns will discuss the hazards of and the preparedness for ground shaking, liquefaction, landslides and tsunamis along the subduction zone. Much of our region was not thought to be an earthquake region, so earthquake building standards are fairly recent. How does this affect building codes, emergency preparedness, siting of critical facilities, building of bridges and transportation corridors in our region? What can we expect after a large quake? Dr. Burns will answer these questions!

OSU MG Study Group: Diagnostic Show & Tell*

Metro area Master Gardener Event

Mon, Nov 5, 1:00 pm - 3:00 pm
*Asterisk indicates Master Gardener continuing education credit.

This event is not open to the public. It is only for Master Gardeners.

This event is lots of fun and a great way for you to work on your diagnostic skills in a relaxed, cooperative environment. It is an informal gathering of Master Gardeners. We bring our own samples of plants, plant parts, insects or spiders to the session. We mill about the room working together on either diagnosing the problem or identifying the sample (or both).

Fascinating Plants Across the Globe- WCMGA Chapter Speakers

Metro area Master Gardener Event

Tue, Nov 6, 6:50 pm - 7:50 pm
Seth Menser was Horticulture Supervisor at the San Diego Zoo, and will give a presentation on the various projects he worked on, highlighting in photography some of the incredible plants he has seen along the way. The countries covered in this presentation include Australia, the Bahamas, Costa Rica, France, New Caledonia, and New Zealand.

The Unknown History Portland’s Rose Test Garden- Monthly Lecture Series

Metro area Master Gardener Event

Mon, Nov 12, 7:00 pm - 8:00 pm
Join us as Harry Landers explores the unknown history of one of Portland’s premier attractions: the International Rose Test Garden. The Garden serves as a trial ground for new rose varieties, as well as an exhibition space. It is the oldest continuously operating public rose test garden in the United States, covering 4.5 acres, and is home to more than 10,000 individual rose plants and approximately 650 varieties. Harry will tell us about the garden and what it takes to make it a World Class Garden and show piece of Portland.

Mason Bee Cocoon Cleaning- In the Garden Series

Metro area Master Gardener Event

Sat, Dec 1, 10:00 am - 12:00 pm
This presentation by OSU Master Gardener, Ron Spendal is a hands-on workshop showing how to extract, clean, and store mason bee cocoons.

OSU MG Study Group: Diagnostic Show & Tell*

Metro area Master Gardener Event

Mon, Dec 3, 1:00 pm - 3:00 pm
*Asterisk indicates Master Gardener continuing education credit.

This event is not open to the public. It is only for Master Gardeners.

This event is lots of fun and a great way for you to work on your diagnostic skills in a relaxed, cooperative environment. It is an informal gathering of Master Gardeners. We bring our own samples of plants, plant parts, insects or spiders to the session. We mill about the room working together on either diagnosing the problem or identifying the sample (or both).

Leach Botanical Garden Plants and History- Monthly Lecture Series

Metro area Master Gardener Event

Mon, Dec 10, 7:00 pm - 8:00 pm
Leach Botanical Garden, a model of sustainable and natural landscaping, is dedicated to the conservation of and education about northwest native plants. David Porter, Director of the Leach Botanical Garden will talk about the lives of John and Lilla Leach and the importance of this beautiful garden to gardeners everywhere.

WCMGA Plant Sale

Metro area Master Gardener Event

Sun, Apr 28, 8:30 am - 2:30 pm
Hundreds of annuals, perennials, herbs, shrubs, and more! We will have a Master Gardener table, so bring your garden questions! Master gardeners also will be available to describe the plants and help with plant selection and care.