Washington County Master Gardener Association

*HERBS FOR SUN AND SHADE
2025-08-23 10:00 - 12:00 (America/Los_Angeles) | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
FREE. Registration NOT required.
Join the Herb class in the Learning Garden at Jenkins Estate. Tour the Herb Spiral featuring more than 40 herbs which do well in our Northwest climate. We will share how herbs can add beauty and fragrance to your garden. The class will discuss what to plant, where to plant and how to harvest, use and store, including growing in containers when you have limited space.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*GROWING GARLIC AND ONIONS IN THE PACIFIC NORTHWEST
2025-09-02 19:00 - 20:00 | Master Gardener Webinar
FREE. Click here to register for webinar
In this presentation we will discuss soil preparation, seeding, planting, harvest, curing, and storage of garlic, onions, shallots, and leeks.
*Class approved for 1 hour Continuing Education credit for MG Perennials

NATURE JOURNALING
2025-09-06 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
FREE. Registration NOT required.
Learn how to use simple prompts and materials to more deeply connect and engage with nature, truly see the world around you, and draw and write about what you see. We’ll show examples and guide you through the process of creating a nature journal page in a fun, interactive environment. Reap the benefits of spending time with others in nature and learn a little something about the Learning Garden’s plants and animals along the way. You’ll take home your first entry and the inspiration and knowledge you need to start your own journey of discovery anywhere you have access to nature. Bring your own journal, pens, and pencils to class or use provided paper and writing/drawing materials. For adults and children ages 10-17 accompanied by an adult. No experience necessary.

*GROWING NATIVE PLANTS
2025-09-20 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
FREE. Registration NOT required.
There is an increasing interest in growing native plants. Information will include the definition and role of native plants. What are the historical uses for native plants? What are the best native plants for your garden? Resources will be shared and there will be an opportunity to see a variety of native plants in the garden.

*Class approved for 1 hour Continuing Education credit for MG Perennials

*PUTTING THE GARDEN TO BED
2025-09-27 10:00 - 12:00 | PCC Rock Creek Campus, Building 4 Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
FREE. Registration NOT required.
Fall is a great time to prepare for winter and to set up your garden for success year-round. We will share tips for landscape plants, best practices for planting trees and shrubs, tasks to prepare the vegetable and fruit garden for winter, and techniques to protect the soil. The in-class section will be followed by a visit to the WCMGA Education Garden for a demo of our tips including proper planting technique, and then a visit to the PCC RC vegetable and fruit garden to discuss techniques to prepare for winter. Helpful references will also be provided.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*RAINWATER HARVESTING FOR LANDSCAPE USE
2025-10-07 19:00 - 20:00 | Master Gardener Webinar
FREE. Advanced registration required.
Click here to register.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*LAWN BE GONE!
2025-10-18 10:00 - 12:00 | PCC Rock Creek Campus, Bldg. 4, Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
FREE. Registration NOT required.
This class will cover turf removal methods and suggestions for what to plant in its place – ecolawn, waterwise plants, native plants or a pollinator garden. We will discuss planning, soil prep, planting tips, and touch on irrigation options. After the presentation we will visit the WCMGA Education Garden at PCC Rock Creek, weather permitting.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*FORESTS IN FLUX: UNDERSTANDING TREE HEALTH, DECLINE, AND RESILIENCE IN NW OREGON
2025-11-04 19:00 - 20:00 | Master Gardener Webinar
FREE. Advance registration required. To register, please click here.
In this talk, we will explore the current state of the science of forest and tree health in NW Oregon, including forest, landscape, and urban trees. We will discuss tree species that are in decline and the ecological, economic, and social impacts of changing forests. Then we will explore tree species that are thriving, including native species like Willamette Valley Ponderosa pine and incense cedar. Updates on pests and pathogens, including emerald ash borer and Mediterranean oak borer, will be provided. Finally, we will discuss resources and best practices for maintaining tree health.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*PLANT PROPAGATION BY HARDWOOD AND SOFTWOOD STEM CUTTINGS
2025-11-15 10:00 - 12:00 | PCC Rock Creek Campus, Bldg. 4, Room 104, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
FREE. Registration NOT required.
Discover the magic of plant propagation in this two-hour class! Delve into the art of softwood and hardwood cuttings, exploring techniques for their successful growth. Learn to nurture and propagate plants effectively with demonstrations and expert tips. This is a hands-on class and you will take your new starts home, so bring your work gloves and garden scissors/pruners if you have them, and a box or plastic bag. We will provide the rest. Get a copy of the handout here.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*BROADENING YOUR PLANT PALETTE
2025-12-02 19:00 - 20:00 | Master Gardener Webinar
FREE. Click here to register for webinar.
As gardeners, we often wish for what we cannot have. Some seek help to source ingredients from their heritage, such as a spinach alternative for late summer or unique plants for a sunbaked flower bed. This presentation will give an overview of creating appropriate microclimates and extending the season using standard gardening techniques to grow tropical and subtropical edibles at home such as sweet potatoes, ginger, turmeric, and lemongrass.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*MASON BEE COCOON CLEANING WORKSHOP
2025-12-06 10:00 - 12:00 | PCC Rock Creek Campus, Building 4 Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
FREE. Registration NOT required.
This hands-on workshop will present why and how to extract and clean mason bee cocoons. Attendees can bring in their own nesting devices or they can use nesting devices that will be available. Cleaning materials will be made available.
*Class approved for 1 hour Continuing Education credit for MG Perennials

What's Your Garden Future? Growing Resilience in a Changing Climate
2026-01-06 19:00 - 20:00 | Master Gardener Webinar
FREE. Click here to register for webinar.
Many of us see firsthand the impact of extreme weather events and climate change in our gardens. Master Gardener volunteers are also receiving questions from the public asking how to care for stressed plants and what to expect next. Communication research shows that it’s through these types of one-on-one conversations between neighbors and community members that real dialogue and understanding can occur about our shifting climate, and the term “climate change” itself. To help Oregon’s gardeners, the OSU Master Gardener Program has launched a new statewide climate resilience education and outreach project called Garden Future. Learn about the resources available, including the Garden Future resource website, a conversational email campaign, and tips for engaging with the interested public.

*GARDENING WITH PACIFIC NORTHWEST NATIVE PLANTS
2026-01-24 10:00 - 12:00 | PCC Rock Creek Campus, Bldg. 4, Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
FREE. Registration NOT required.
Come learn about the native plants that thrive in the PNW garden, how to naturescape in support of wildlife and pollinators, and consider the possibilities the Backyard Habitat Certification Program offers through its customized yard assessment.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*STEPWISE JOURNEY OF TREE IDENTIFICATION
2026-02-03 19:00 - 20:00 | Master Gardener Webinar
FREE. Click here to register for webinar.
Tree identification can be a challenge, especially without a guide that focuses on the trees in and around our urban areas in the Pacific Northwest. That all changes after today! Arborist, author, and educator Casey Clapp joins to talk about his new tree identification book “The Trees Around You” and how he’s aiming to change the way that people see their trees where they live here in the Pacific Northwest. He’ll cover why tree ID is important, his Stepwise Journey of tree ID, which aims to demystify the process, and will go over what makes his new guide perfect for the urban dendrologist.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*BLUEBERRY CARE
2026-02-21 10:00 - 12:00 | 17705 NW Springville Rd, Portland, OR 97229, PCC Rock Creek, Building 7, Room 105, Portland, OR, 97229, United States
FREE. Registration NOT required.
Blueberries are easy and fun to grow. Learn about planting, fertilizing, plant selection and care for blueberries, including pruning techniques. Bring your own hand pruners and garden gloves for some hands-on opportunity to prune.
Class will start indoors followed by a short walk outdoors to the PCC RC Learning Garden. Dress accordingly.
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*THE COMPLETE MASON BEE
2026-02-28 10:00 - 12:00 | PCC Rock Creek Campus, Bldg. 4, Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
FREE. Registration NOT required.
This class will cover the natural history of the mason bee including their identification, life cycle, propagation and care. Ron Spendal has been raising and researching mason bees since 2002. He has published educational materials as well as scientific papers. His work has also been covered on OPB’s show Oregon Field Guide.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*HARNESSING NATURE: EFFECTIVE BIOLOGICAL CONTROL STRATEGIES FOR MASTER GARDENERS
2026-03-03 19:00 - 20:00 | Master Gardener Webinar
FREE. Click here to register for webinar.
This presentation will discuss the importance of insects and the diverse ecological services that beneficial insects provide. Additionally, it will detail the different types of natural enemies and their roles in Integrated Pest Management (IPM) practices.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*TROPICAL DELIGHTS: YOUR GUIDE TO GROWING AND PREPARING TROPICAL PRODUCE *CANCELED due to campus closure**
2026-03-21 10:00 - 12:00 | PCC Rock Creek Campus, Building 4 Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
FREE. Registration NOT required. *Class is canceled due to campus closure on Saturday*
Grow an assortment of vegetables that make great conversation pieces and provide you with nutritious meals! Learn about some vegetables that are typically not grown in the PNW – bottle gourd, lemongrass, taro root, black chickpeas and more. Learn tips and tricks on how to start veggies from seed using a simple homemade set up. Learn how to cook them and take home some recipes!
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*DROUGHT RESISTANT LANDSCAPING
2026-04-07 19:00 - 20:00 | Master Gardener Webinar
FREE. Click here to register for webinar.
An introduction to drought tolerant, Xeriscape design for the home gardener. Learn through the 7 prinicples of Xeriscape how to plan, design, implement, and maintain a decorative and sustainable landscape that thrives with little to no irrigation.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*BASICS OF PLANT PROPAGATION
2026-04-18 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
FREE. Registration NOT required.
Learn how to make more of the plants you love using samples taken from selected plants in our Learning Garden. OSU Extension MG Volunteers will show you some of the basics of plant propagation. During this hands-on session, you’ll make starts of new plants and take them home. We’ll provide the necessary supplies but bring your favorite small pruners and gloves if you like.
*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

GARDENFEST PLANT SALE
2026-05-02 09:00 - 13:00 | PCC Rock Creek Hoop House, H48P+2QX Bethany, Oregon
Join us for WCMGA’s GARDENFEST Plant Sale. Please check out our GARDENFEST page for more information.
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

GROWING GARDENS - GROWING COMMUNITY HEALTH & WELLNESS
2026-05-05 19:00 - 20:00 | Master Gardener Webinar
FREE. Click here to register for webinar.
Jason will inform us about the current work of Growing Gardens- a local nonprofit building connected food systems across the state of Oregon, they achieve their goals at building the next generation of food system leaders through 3 programs: Home Gardens- where they support families for three years to become life-long food producers, in Youth Grow with 10 title 1 elementary schools, and in 14 correctional facilities providing hands-on garden education and vegetable production opportunities.

*GROWING NATIVE PLANTS
2026-05-30 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
FREE. Registration NOT required.
There is an increasing interest in growing native plants. Information will include the definition and role of native plants. What are the historical uses for native plants? What are the best native plants for your garden? Resources will be shared and there will be an opportunity to see a variety of native plants in the garden.

*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*HOW TO SUCCESSFULLY GROW CHINESE VEGETABLES, FRUIT & ORNAMENTALS IN THE PACIFIC NORTHWEST
2026-06-02 19:00 - 20:00 | Master Gardener Webinar
FREE. Click here to register for webinar.
In this talk, Lan Su Chinese Garden’s Curator of Horticulture will speak to two unique facets of Chinese horticulture: the edible and the ornamental. China has a very rich history of cultivating plants which extends thousands of years. During this talk, you will learn about the symbolism of China’s most important plants and how they still relate to the day-to-day life of the Chinese people. Furthermore, Josie will present tips on how to successfully grow Chinese fruits and vegetables in the climate of the Pacific Northwest.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*SEASONS OF BEAUTY: CARING FOR AND DESIGNING WITH PERENNIALS
2026-06-06 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
FREE. Registration NOT required.
Trees, woody shrubs, and perennials are parts of the majority of gardens, large or small. All provide seasonal color, structure, wildlife and insect habitat. In this workshop participants will learn about general garden design, life cycles, bloom calendars, and seasonal care; see and discuss lessons learned and experiences provided by the learning garden; gain insight into common questions people have and practical research-based answers.
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*GROWING VEGETABLES IN THE WILLAMETTE VALLEY
2026-06-13 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
FREE. Registration NOT required.

Learn how to use raised beds and containers for the kinds of bountiful harvests you see at the Learning Garden at Jenkins Estates. Master Gardeners will demonstrate how to successfully plan, plant, and harvest vegetables in your home garden.
*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

LEARNING GARDEN FAIR
2026-06-27 10:00 - 13:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
FREE. Registration NOT required.
Join us at the Learning Garden Fair for a day of gardening inspiration and fun! Enjoy tours with Master Gardeners, hands-on activities for kids, and an insightful talk on carnivorous plants for natural pest control. Discover tips on perennials, native plants, deer resistant plants, vegetable gardening, growing fruit and herbs, wise watering, composting, pollinators, and garden design. Get answers to your gardening questions. It’s a perfect event for families and garden enthusiasts alike. Don’t miss this special day at the Learning Garden!

*HERBS FOR SUN AND SHADE
2026-08-22 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
FREE. Registration NOT required.
Join the Herb class in the Learning Garden at Jenkins Estate. Tour the Herb Spiral featuring more than 40 herbs which do well in our Northwest climate. We will share how herbs can add beauty and fragrance to your garden. The class will discuss what to plant, where to plant and how to harvest, use and store, including growing in containers when you have limited space.
*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*SEED SAVING WORKSHOP: COLLECTING, PROCESSING, AND STORING SEEDS
2026-08-29 10:00 - 12:00 | PCC Rock Creek Campus, Building 4 Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
FREE. Registration NOT required.
In this class you will learn the fundamentals of saving your own seeds! We’ll learn how to identify where seeds are in common garden vegetables and flowers and how to know when they are ready to pick and process. You will then learn different methods for saving and storing seeds successfully. Seeds and supplies will be provided and you’ll get to take home seeds for next year’s garden!
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*BUILDING HEALTHY GARDEN SOILS FOR BETTER VEGETABLES
2026-09-01 19:00 - 20:00 | Master Gardener Webinar
FREE. Click here to register for webinar.
We will focus on the techniques you can deploy to improve the health of your garden soil and as a result the quality of your fruits and vegetables. What are the characteristics of a healthy soil and what is the role of “Soil Organic Matter” in building healthy garden soils? Bruce will try to tease out how results “No Till” farmland research can inform your garden soil improvement process. We will review the common techniques of soil improvement ranging from extreme no till to the disruption of “Double Dig,” all of which try to preserve and increase soil organic matter and their drawbacks. Ending with a description of Bruce’s process of garden soil improvement.
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.
