Gardenfest Plant Sale - Create beautiful gardens that thrive!
5000+ plants expertly selected for the PNW
FREE. Click here to register for webinar Come learn about the innovative social marketing campaign of OSU Extension and OSU's SNAP-Ed program, bringing to beginning gardeners free seeds, gardening guides and tips,...
FREE. Registration NOT required. The Pacific Northwest (PNW) is one of the most diverse regions in the world for conifers. Our climate has much in common with many of the...
FREE. Registration NOT required. Family Friendly Event. Join us in the garden for hands-on activities for the whole family that celebrate invertebrates and vertebrates. Learn about the insects and other...
FREE. Click here to register for webinar Learn strategies and build a step-by-step process to help determine what actions should be taken on your land or in your garden to...
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...
FREE. Registration NOT required. Herbs are among the most prized crops in any garden. In this class, we will tour the Learning Garden ’Herb Spiral’ that features more than 40...
FREE. Registration NOT required. Composting recycles yard and food waste, reduces greenhouse gases, and produces a free, high quality soil amendment. But do you find composting confusing, frustrating and not...
FREE. Click here to register for webinar. Covers steps to create healthy, productive gardens and help save our disappearing pollinators and birds. Includes planting native plants and is based on...
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...
FREE. Click here to register for webinar. Covers everything you didn’t know you wanted to know about garden mulches: their many benefits, what types are best for different purposes, when...
FREE. Registration NOT required. Come learn about the native plans that thrive in the PNW garden, how to naturescape in support of wildlife and pollinators, and consider the possibilities the...
FREE. Click here to register for webinar. Presentation will compare and contrast strawberries, raspberries, blueberries, and blackberries. Topics include longevity, space requirement, variety choices, expected time of harvest, quantity of...
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...
FREE. Click here to register for webinar. Our climate has so much for so many plants, it can be difficult to choose. This is a festive sampling of surprises and...
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...
It's ALL about soil! Most people only have a vague idea of what soil is and how it works. You will learn more than you ever thought possible from this lecture. The reason you are alive, what nutrients are, how soil stores water and nutrients. The fundamentals that ALL humans on the planet Earth should know!
Houseplant Sale
This class covers the identification and natural history of mason bees. Attendees will gain a solid understanding of the characteristics and activities of mason bees and why they are one...
Dr. Madsen will briefly share what she has learned during her first year as statewide program manager for the OSU Extension Master Gardener Volunteer Program—and how that knowledge and understanding are shaping her vision and plans for the program. The second part of her talk will be highly interactive, with opportunities for volunteers to influence the direction of the program in 2025 and beyond. She’s eager to hear your thoughts and ideas!
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...
Don't miss out on our Houseplants Sale! From lush ferns to vibrant succulents and flowering begonias - you'll be sure to find your green companion here, mostly in $1-$10 range....
FREE. Registration NOT required. In this class we’ll discuss and demonstrate pruning of various landscape perennials. We’ll start with general guidelines - when to prune, what to prune, and the...
FREE. Registration NOT required. This class will cover the needs of mason bees and how to attract them to your area. Various nesting devices will be presented and discussed. *Class...
FREE. Registration NOT required. Thinking about drip irrigation but not sure where to start? In this session we’ll cover the types of micro irrigation systems and where to use them....
This presentation will provide 1) an overview of EAB and ash biology, 2) updates to the State of Oregon's ongoing EAB survey, management, and communication strategies, and 3) planning and management strategies for EAB in both urban and natural areas.
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...
FREE. Registration NOT required. Perennial plants are amazing – they give the garden beauty and food for wildlife plus they create an ever-changing tapestry of color. On top of that,...
Learn about dragonflies and damselflies featuring: Taxonomy & brief history; Oregon species & portraits; Life cycle, habitat & diet; Amazing attributes; Finding dragons; Inviting odonates to your garden; and Helpful resources
FREE. Registration NOT required. This outside demonstration and hands-on workshop will take place in the WCMGA Education Garden at PCC Rock Creek. It will include: the when, what and how...
*CANCELLED* 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...
FREE. Registration NOT required. 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...
Join us for our 2025 Gardenfest Plant Sale, featuring over 5000 plants expertly selected for the PNW! Check out the Gardenfest Plant Sale page for more details!
FREE. Click here to register for webinar. The metro area Master Gardener Program Leader will present the 2024 program highlights, showcasing key achievements, outreach efforts, and impacts. Additionally, she will...
Gardenfest Clearance Plant Sale Unsold plants from our main Gardenfest Plant Sale at discounted prices. In PCC Rock Creek Hoop House. Please park in lot D or E for easiest...
*CANCELLED* FREE. Registration NOT required. Discover the art of garden restoration by learning techniques to revitalize old, overgrown, and neglected gardens! This course will equip you with the knowledge and...
No genus of shrubs has undergone such a transformation as Hydrangea has over the last couple of decades. There are hydrangeas to suit any garden - learn about the new varieties and less common species of Hydrangea - mop-heads, lace-caps, paniculate and oakleaf, interspecific crosses and intersectional hybrids, hydrangeas with sun tolerance and foliage interest, and more.
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...
Join us in the garden for hands-on activities for the whole family that celebrate invertebrates and vertebrates. Learn about pollinators, other beneficial insects, the wildlife in our garden and meet some farm animals from the PCC Rock Creek Farm. Get answers to your gardening questions from expert Master Gardeners. Free giveaways!
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!
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...
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...
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...
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...
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...
FREE. Advanced registration required. Check back for details.
*Class approved for 1 hour Continuing Education credit for MG Perennials
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. ...
In this talk, we will explore the current state of the science of forest and tree health in NW Oregon. 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.
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...
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.
In cooperation with the OSU Extension Service, 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. The Washington County Master Gardener Association (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.
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.
© 2025 Washington County Master Gardener Association.
