Skyline Grange Tree seedling sale
Deadline for submission of your pre-order is February 9 at 5 pm, plant pick up is scheduled for Friday-Saturday, February 27-28
We have a good selection of coniferous and deciduous tree seedlings and some shrub seedlings. Request a Pre-Order Form & Species Descriptions at [email protected] or download it here. Order early, some species may sell out before our deadline. Learn more on our website.
THPRD Spring Native Plant Sale
Sign up now to get your Spring Native Plants. Sale begins on March 1. Sign up for the newsletter and order online at SparrowHawkNativePlants with pick-up available at Tualatin Hills Nature Park on May 1-2.
Treekeepers of Washington County programs
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.
Lupine seed cleaning
Thursday, February 12, 2-3:30 pm, Camille Park, free
Ross Tewksbury has rescued some bags of native lupine seeds that we can use to replant in restoration spaces. Help us strip the seed pods from the stems to ready the seeds for planting. It’s a simple and soothing task, and will give us a chance to chat while we do some good for the earth! We’ll be meeting at the picnic shelter at Camille Park so we’ll stay dry no matter what the weather. Bundle up and join us—and go home with some lupine seeds of your own to sow.
Webinar: Identifying trees in winter
Wednesday, February 18, 6:30 pm, online via Zoom (registration link), free
Most people rely on leaves to identify trees, but that is just one clue to recognizing a tree. Each tree species has a unique bark, form, bud, and seed that will help you identify them in the same way that you might distinguish a friend by their voice, body shape, or characteristic movements. Join Ran Hammock, Certified Oregon Naturalist, Naturalist Guide, and Naturalist Writer, as he demonstrates how to use branching patterns and other clues to identify trees in winter. This webinar will also be followed up with an optional tree walk as Ran guides us in applying these skills at the Tualatin River National Wildlife Refuge on February 27. Signup information for the walk is provided in the article below.
Tree Walk: winter tree identification at Tualatin River National Wildlife Refuge
Friday, February 27, 1-3 pm, Tualatin River National Wildlife Refuge, free
Washington County’s Tualatin River National Wildlife Refuge contains a variety of habitat types and over 900 total acres of protected land and water, featuring meadows, forests, and a viewing platform overlooking the Tualatin River. Join Ran Hammock as he demonstrates how to use branching patterns and other clues to identify trees in winter. We should be able to enjoy the osoberries in bloom, and the female flowers evident on the hazelnuts as we walk this ADA approved, somewhat level pea-graveled path extending one mile out and one mile back. Register soon, as group size is limited.
Tree Walk: noticing fractals in trees at Commonwealth Lake
Thursday, March 5, 5-6 pm, Commonwealth Lake, free
In the midst of the Cedar Hills neighborhood in Beaverton, this park surrounds man-made Commonwealth Lake. It offers lots of opportunities to spot fractals in nature, repeated patterns that mirror the structure of the whole: deciduous trees with their bare branches, evergreens, shrubs along the lake, ferns, feathers on waterfowl, ripples on the water, and frequently magnificent clouds with their repeating shapes. With this late day walk, we may even be immersed in a gorgeous sunset reflected in the lake! Commonwealth Lake has a paved, flat trail all around it, about 0.8 mile. We will be making two trips around the lake at a normal walking pace, with stops to examine fractals. You can Rregister for the walk here.
Ivy pulls: join our on-call ivy crew
October-March, dates and locations will vary, free
English ivy hangs on through winter at a time trees are particularly vulnerable. The invasive vines keep growing while trees are dormant, and the excess weight can increase risks for trees during winter storms. Help us save trees by removing ivy and other invasive plants that threaten them. Weather makes it hard to schedule events, so please, sign up and we’ll notify you when there is a good weather window so we can schedule an ivy pulling event in various locations within Washington County. You can also check our events page for current ivy pulls.
Master Gardeners programs
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 501(c)3 non-profit supported by hundreds of volunteers, who work to educate the public about sustainable, affordable gardening.
Stepwise journey of tree identification
Tuesday, February 3, 7-8 pm, online via Zoom (registration link), free
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 us 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.
Blueberry care
Saturday, February 21, 10-noon, PCC Rock Creek, 17705 NW Springville Rd., free
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 gloves for a hands-on opportunity to prune. Class will start indoors in Building 7, room 105, followed by a short walk outdoors to the PCC RC Learning Garden. Dress accordingly. Instructors: Sue Ryburn, Helen Dorbolo, Lisa Barnhart, and Stephanie Engle, OSU Extension MG Volunteers. Approved for one hour of Master Gardener Education Credit.
Raising mason bees
Saturday, February 28, 10-noon, PCC Rock Creek, 17705 NW Springville Rd, free
Join WCMGA and mason bee expert Ron Spendal in Building 4, Room 103 for a class focusing on environmental needs, nesting behaviors, and housing devices attractive to mason bees. Ron Spendal is an OSU Master Gardener who has been providing mason bee education to the public for over 15 years. He operates educational mason bee displays across Washington County and runs highly sought-after courses on mason bee management through the WCMGA. Ron designs and builds his own equipment, and he conducts research in conjunction with Oregon State University and Montana State University. Ron’s work with mason bees has also been featured on the Oregon Field Guide program on OPB. Approved for one hour of Master Gardener Education Credit.
Harnessing Nature: Effective Biological Control Strategies for Master Gardeners
Tuesday, March 3, 7-8 pm, Zoom Webinar, Pre-registration required
Presented by: Paola Sotelo-Cardona, IPM Educator/Oregon IPM Center, OSU. Paola Sotelo-Cardona is a biologist with extensive experience in sustainable agricultural practices, specializing in entomology, plant protection, integrated pest management (IPM), and agroecology. 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.
For more information, visit WCMGA.
Cedar Mill Garden Club meeting
Wednesday, February 18, 10-noon, Beaverton Library, 12375 SW 5th, Cathy Stanton meeting room, free
Cedar Mill Garden Club welcomes new members or guests on a drop-in basis. Please join us for our February Meeting where we will host Ashley from Glasshaus Gardens, who will demonstrate the basics of flower arrangement. Class starts at 11 am. For more information, please contact Cathy Ramsey at [email protected].
Scholarships available
The Pioneer District of Garden Clubs (of which Cedar Mill is a member) has $1500 scholarships for students, including incoming freshman for 2026-2027, for students attending an accredited Community College or College/University in Oregon. Applicants must major in Horticulture, Floriculture, Landscape Design, Conservation, Forestry, Botany, Agronomy, Plant Pathology, Environmental Control, City Planning, Land Management, Alternative Energy, Biology, Fish & Wildlife, or related subjects. Applicants must be residents of Columbia, Washington, or Yamhill Counties. For more information and/or an application, please contact Charlene Bassine at [email protected].
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