Washington County Master Gardener Association

*DROUGHT RESISTANT LANDSCAPING
2026-04-07 19:00 - 20:00 (America/Los_Angeles) | Master Gardener Webinar
FREE. Click here to register for webinar.
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 decorative and sustainable landscape that thrives with little to no irrigation.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*BASICS OF PLANT PROPAGATION
2026-04-18 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
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 you some of the basics of plant propagation. During this hands-on session, you’ll make starts of new plants and take them home. We’ll provide the necessary supplies but bring your favorite small pruners and gloves if you like.
*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

GARDENFEST PLANT SALE
2026-05-02 09:00 - 13:00 | PCC Rock Creek Hoop House, H48P+2QX Bethany, Oregon
Join us for WCMGA’s GARDENFEST Plant Sale. Please check out our GARDENFEST page at the link for more information.
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

GROWING GARDENS - GROWING COMMUNITY HEALTH & WELLNESS
2026-05-05 19:00 - 20:00 | Master Gardener Webinar
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 goals at building the next generation of food system leaders through 3 programs: Home Gardens- where they support families for three years to become life-long food producers, in Youth Grow with 10 title 1 elementary schools, and in 14 correctional facilities providing hands-on garden education and vegetable production opportunities.

*GROWING NATIVE PLANTS
2026-05-30 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
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 plants? What are the best native plants for your garden? Resources will be shared and there will be an opportunity to see a variety of native plants in the garden.

*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*HOW TO SUCCESSFULLY GROW CHINESE VEGETABLES, FRUIT & ORNAMENTALS IN THE PACIFIC NORTHWEST
2026-06-02 19:00 - 20:00 | Master Gardener Webinar
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 a very rich history of cultivating plants which extends thousands of years. During this talk, you will learn about the symbolism of China’s most important plants and how they still relate to the day-to-day life of the Chinese people. Furthermore, Josie will present tips on how to successfully grow Chinese fruits and vegetables in the climate of the Pacific Northwest.
*Class approved for 1 hour Continuing Education credit for MG Perennials

*SEASONS OF BEAUTY: CARING FOR AND DESIGNING WITH PERENNIALS
2026-06-06 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
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 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; gain insight into common questions people have and practical research-based answers.
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*GROWING VEGETABLES IN THE WILLAMETTE VALLEY
2026-06-13 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
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 demonstrate how to successfully plan, plant, and harvest vegetables in your home garden.
*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*HERBS FOR SUN AND SHADE
2026-08-22 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
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 climate. We will share how herbs can add beauty and fragrance to your garden. The class will discuss what to plant, where to plant and how to harvest, use and store, including growing in containers when you have limited space.
*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*SEED SAVING WORKSHOP: COLLECTING, PROCESSING, AND STORING SEEDS
2026-08-29 10:00 - 12:00 | PCC Rock Creek Campus, Building 4 Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
FREE. Registration NOT required.
In this class you will learn the fundamentals of saving your own seeds! We’ll learn how to identify where seeds are in common garden vegetables and flowers and how to know when they are ready to pick and process. You will then learn different methods for saving and storing seeds successfully. Seeds and supplies will be provided and you’ll get to take home seeds for next year’s garden!
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*BUILDING HEALTHY GARDEN SOILS FOR BETTER VEGETABLES
2026-09-01 19:00 - 20:00 | Master Gardener Webinar
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 and vegetables. What are the characteristics of a healthy soil and what is the role of “Soil Organic Matter” in building healthy garden soils? Bruce will try to tease out how results “No Till” farmland research can inform your garden soil improvement process. We will review the common techniques of soil improvement ranging from extreme no till to the disruption of “Double Dig,” all of which try to preserve and increase soil organic matter and their drawbacks. Ending with a description of Bruce’s process of garden soil improvement.
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

PITCHER PLANTS AND WATERWISE WONDERS
2026-09-12 10:00 - 12:00 | The Gazebo, WCMGA Learning Garden at Jenkins Estate, 8005 SW Grabhorn Rd, Beaverton, OR, 97007, United States
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 waterwise plants to thrive. Learn a little about where some of these plants come from, their growing requirements, and how to care for them. The class will also include a brief introduction to nature journaling where you’ll learn to use simple prompts and materials to more deeply connect and engage with nature, truly see the world around you, and draw and write about what you see. You’ll get a guided tour of the Learning Garden’s pitcher plant bed and waterwise area and have the opportunity to journal about your observations in a fun, interactive environment. Bring your own journal, pens, and pencils to class or use provided paper and writing/drawing materials. No previous nature journaling experience necessary.
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*PUTTING THE GARDEN TO BED
2026-09-19 10:00 - 12:00 | PCC Rock Creek Campus, Building 4 Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
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 practices for planting trees and shrubs, tasks to prepare the vegetable and fruit garden for winter, and techniques to protect the soil. The in-class section will be followed by a visit to the WCMGA Education Garden for a demo of our tips including proper planting technique, and then a visit to the PCC RC vegetable and fruit garden to discuss techniques to prepare for winter. Helpful references will also be provided.
*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

WCMGA EDUCATION GARDEN OPEN GARDEN: Spiders, Beneficial Insects & Wildlife, Oh My!
2026-10-03 10:00 - 13:00 | PCC Rock Creek Campus, WCMGA Education Garden, H48Q+4P2 Bethany, Oregon, Portland, OR, 97229, United States
FREE. Registration NOT required.
Family Friendly Event.

Join us for this fall family friendly event. Visit Community partner booths to learn about spiders, beneficial insects and wildlife in the fall and winter garden. Take part in the Spidermania Scavenger Hunt, make a Spider Pop, and learn what you can do to support wildlife in the fall and winter.
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*PLANT PI: INVESTIGATING CRIMES AGAINST PLANTS
2026-10-06 19:00 - 20:00 | Master Gardener Webinar
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 your observational skills, lab clues, and teamwork, you’ll gather evidence and narrow down
the suspects. Can you diagnose the plants before the clock runs out?
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*ARBORVITAE AND THEIR LOOKALIKES: Identification and Natural History
2026-11-03 19:00 - 20:00 | Master Gardener Webinar
FREE. Advance registration required.
What is the difference between true Arborvitae (Thuja spp.) and false Arborvitae (Chamaecyparis spp.)? What is the difference between false cedars (Thuja spp. and Chamaecyparis spp.) and true cedars (Cedrus spp.)? In this webinar, Elizabeth Price will disentangle the confusing naming conventions for these groups of conifers. She will also highlight foliage and cone characteristics for quickly differentiating among these notoriously difficult-to-identify conifers.
Price will also discuss the fascinating natural history of these plants, including: Why Arborvitae were named the “tree of life” or “Arbre de Vie” by early explorers and why a warming climate is causing Alaska-cedars to die of the cold.

*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*PLANT PROPAGATION BY HARDWOOD AND SOFTWOOD STEM CUTTINGS
2026-11-14 10:00 - 12:00 | PCC Rock Creek Campus, Bldg. 4, Room 104, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
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 plants effectively with demonstrations and expert tips. This is a hands-on class and you will take your new starts home, so bring your work gloves and garden scissors/pruners if you have them, and a box or plastic bag. We will provide the rest. Get a copy of the handout here.
*Class approved for 1 hour Continuing Education credit for MG Perennials

Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*BOOST BIODIVERSITY IN YOUR GARDEN WITH INSECT-FRIENDLY HABITAT
2026-12-01 19:00 - 20:00 | Master Gardener Webinar
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 in improving insect biodiversity where you live. In this talk, you’ll learn eight simple steps you can take to create more insect-friendly habitat in your garden, and you’ll meet some of the fascinating creatures that show up when you welcome them in.
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.

*MASON BEE COCOON CLEANING WORKSHOP
2026-12-05 10:00 - 12:00 | PCC Rock Creek Campus, Building 4 Room 103, Building 4, 17705 NW Springville Rd, Portland, OR, 97229, United States
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 use nesting devices that will be available. Cleaning materials will be made available.
*Class approved for 1 hour Continuing Education credit for MG Perennials
Accommodation requests related to a disability should be made two weeks in advance to Jenifer Halter, 503-821-1150, jenifer.halter@oregonstate.edu.
