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 to nurture and propagate...
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...
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.
