Garden & Nature News June 2026
Treekeepers of Washington County events
We work to protect and advocate for trees in urban unincorporated Washington County. Don’t miss our upcoming events! All events are free. Visit the Treekeepers website to learn more. Meet up location will be shared once you register
Tree Walk: Orenco Woods Nature Park
Sunday, June 14, 12:30-2:30 pm, Orenco Woods Nature Park
Join Margaret Johns on a walk through the 44-acre park with a network of looped trails that weave their way through rolling landscape, open meadows, oak savannah, riparian habitat, forested areas and a glimpse at a variety of birds and wildlife. We will meet and begin our walk at the Orenco Station Farmer’s Market, which opens at 10 am if you would like to visit before the walk. We will then walk over to the Nature Park and learn about the history of the Orenco area. You can register for the walk here.
Tree Walk: Conifers at Hoyt Arboretum
Thursday, June 18, 10-11:30 am, Hoyt Arboretum
Join Sue Rosenbaum for a tour of Hoyt Arboretum’s nationally accredited Conifer Collection! Learn about Hoyt’s mission, visit some rare trees, hear the story of the Dawn Redwood, our living fossil, marvel at the redwoods and giant sequoias, observe several deciduous conifers, and learn about the historical importance of cedars. Follow this link for registration.
Cedar Mill Garden Club
Cedar Mill Garden Club would like to thank Kurt at Cedar Mill Landscape Supply for his generous donation of hemlock mulch for our pollinator garden at Leedy Grange. We do not have formal meetings from May through September but take trips to nurseries or tour members’ gardens. If you are interested in learning or sharing your knowledge of gardening, please contact Cathy Ramsey at cathyramsey308@gmail.com or 503-866-4222.
Trip to Blooming Junction
Wednesday, June 17, 10-noon, 35105 NW Zion Church Rd., Cornelius, free
We will carpool from the Cedar Mill Library parking lot at 10 am, or you can meet us at the nursery at 10:30 am. If you are interested in attending, please contact Cathy Ramsey at cathyramsey308@gmail.com or 503-866-4222.
Master Gardeners events
Seasons of Beauty: caring for and designing with perennials
Saturday, June 6, 10-noon, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd., Beaverton, free, no registration required
Trees, woody shrubs, and perennials are parts of the majority of gardens, large or small. All of them provide seasonal color, structure, wildlife and insect habitats. 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; and gain insight into common questions people have, as well as receive practical research-based answers. Presented by: Steve Kister and Tamara Newton-Baker, OSU Extension MG Volunteers. *Class approved for one hour continuing education credit for MG Perennials.
Growing Vegetables in the Willamette Valley
Saturday, June 13, 10-noon, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd., Beaverton, free, no registration 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. Presented by: Dan McDonald, Jeannine Rychlik, Jennifer Rosenquist, and Lorill Hirschberger, OSU Extension MG Volunteers. *Class approved for one hour continuing education credit for MG Perennials.
Jenkins Estates Master Gardener Garden Fair
Saturday, June 27, 10-1, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd., Beaverton, free, no registration required
Join us 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.
Learn from community partners including Tualatin Hills Parks & Recreation District, Backyard Habitat, Eco-School Network, Oregon Agriculture in the Classroom, Growing Gardens, Food Hero, and the Tualatin Valley Soil and Water Conservation District.
Kids can learn how to plant seeds and watch them grow! They can also see all the critters living in compost that help create healthy soil.
If attending, parking is available in the Rivendale parking lot near the playground; follow posted signs to find the Garden Fair! Hosted by the OSU Washington County Master Gardener Association.
Ask a Master Gardener
Any time you have a gardening question, you can find us at many local Farmers’ Markets and events. Visit us online to get phone numbers or fill out an online form.
OSU Extension Master Gardeners are volunteer educators, neighbors, and on-the-ground researchers who serve their community with solid training in science-based, sustainable gardening and a love of lifelong learning. Learn more about us on our website.
