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.
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...
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...
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 Advanced Registration Required 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...
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...
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...
FREE. Advance registration required. 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...
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...
FREE Advanced Registration Required 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...
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...
Join us for WCMGA's GARDENFEST Plant Sale. Please check out our GARDENFEST page at the link for more information.
FREE Advanced Registration Required 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...
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. Advance registration required. 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...
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...
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. 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. Advance registration required. 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...
FREE. Registration NOT required. Dive into the fascinating world of carnivorous and drought-tolerant plants, exploring the unique structures of pitcher plants and the diverse shapes, textures, and adaptations that allow...
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...
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!
FREE. Advance registration required. Step into the role of a plant detective! You’ve just been assigned several puzzling plant disease cases with limited evidence and little time to spare. Using...
FREE. Advance registration required. *Class approved for 1 hour Continuing Education credit for MG Perennials
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. Advance registration required. News of crashing insect populations may make you feel hopeless about the future. However, there are many things you can do to make a real difference...
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...
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.
