10-Minute University™ Handouts | 10-Minute University™ Videos
10-Minute University™ is the trademark of short classes on essential gardening information. All presentations are free and each is accompanied by a handout. Oregon State University owns the trademark and Clackamas County Master Gardeners develop and manage the program.
10-Minute University™: Let’s Grow Together!
FREE 2023 Online Seminar
Wednesday’s at Noon – 1pm through May 24.
January 18 – Pruning Ornamental Trees Video Link (1:05)

March 29, Noon-1pm Tomatoes II: Transplanting & Planting into the Garden
This free class requires advanced registration. Recording link will be sent 2 days after the class. Click here to register.
This class is the second of a series, each is perfectly timed for what you need to know. The first session focused on how to choose among thousands of varieties and how to start them from seeds.
This session will cover:
- How to care for your seedlings
- How to ‘pot up’ seedlings (a secret of tomato masters)
- How to choose a good tomato start at the nursery
- Which tomatoes are recommended for cool vs hot climates
- When to plant the tomato start in the garden
- Balcony or backyard: What are techniques for growing successful tomatoes
- What structures can protect your plant and extend the growing season
- How to support a large tomato plant
- What are good “companion” plants and plants to avoid near your tomatoes
- Why it is important to rotate your crops, especially tomatoes
Our speaker Amelia Wilbur is an Oregon State University Extension Master Gardener who teaches for the award-winning 10-Minute University™ Program. She and her husband once co-owned a tomato grafting business. They grow a wide variety of vegetables and fruiting plants on their 3.5-acre home garden and annually harvest more than 500 pounds of tomatoes.
April 5, Noon-1pm Spring Ornamental Gardening

This free class requires advanced registration. Even if you can’t attend live, go ahead and register. Recording link will be sent 2 days after the class. Click here to register.
Spring – It is the best of times; it is the worst of times. The nurseries are beginning to fill with new plants. We get a few warm days and everything smells so wonderful. It seems the perfect time to begin the winter clean-up.
And yet, depending on what is happening with our weather, it could be the worst time to start mucking about in your garden and destroying the soil.
In this class we will review tasks for getting your garden going, including pruning techniques for perennials and shrubs, preparing a compost pile, how to control pests and diseases, and getting your lawn ready for the growing season.
Our speaker Laura Eyer is an Oregon State University Extension Master Gardener who teaches for the award-winning 10-Minute University™ Program. She designed gardens for clients in the past and now gardens at home and on neighbors’ properties, usually with their consent.
April 12, Noon-1pm Raised Bed Gardening: Tips and Tricks

This free class requires advanced registration. Even if you can’t attend live, go ahead and register. A recording link will be sent two days after. Click here to register.
Raised beds are a viable way to increase crop production through greater, early warmth in the growing beds. Whether starting beds from scratch or improving yields in existing garden space, take time to consider options — cold frames, trellises, watering systems, and crop protection during cold weather or prolonged drought – to maximize benefits.
The class will review the pros and cons of framed and unframed raised beds, material choices, tips for construction and continued maintenance. It will also discuss how to get the most of growing vegetables in raised beds.
Our speaker Priscilla Robinson is an Oregon State University Extension Master Gardener who teaches for the award-winning 10-Minute University™ Program. She gained extensive experience with container gardening when she downsized to a townhouse. Priscilla gardens at a community garden plot and actively participates in the “Grow an Extra Row”, a program of Clackamas County Master Gardener Association. Team members annually grow and donate several thousand pounds of fresh produce to food banks.
April 19, Noon – 1pm Using Rain Gardens and Bioswales to Harvest Water

This online seminar is free with advanced registration. Even if you can’t attend live, go ahead and register. A recording link will be sent 2 days after. Click here to register.
Rain Garden allows water to seep through soils and into the ground rather than losing it to storm drains. Bioswale slows water flow and cleanse runoff. Both help restore the natural water cycle in developed areas where pavement and hard surfaces route rainfall directly into streams or the sewer.
This class will explain the difference between a rain garden and a bioswale. We begin with how to survey your property, examine your soil, and observe the movement of water in your garden. All these assess and clarify whether bioswale or rain garden is a good match for your site. We will show you, step-by-step, how to make them.
Our speaker Cheryl Borden is an Oregon State University Extension Master Gardener™ who teaches for the award-winning 10-Minute University Program. Cheryl retired from decades of teaching children to become a garden educator who answers gardening questions for the OSU Extension Helpline. Cheryl gardens at home and manages the Pollinator Garden at Mary S. Young State Park.
April 26, Noon-1pm Invasive Pests and Look-Alikes

This online seminar is free with advanced registration. Even if you can’t attend live, go ahead and register. A recording link will be sent 2 days after. Click here to register.
Knowing which critters do harm to plants is requisite to gardening in harmony with nature while minimizing the use of pesticides.
This session will acquaint you with invasive pests, such as Japanese beetle, jumping worm, Emerald ash borer. You will learn to identify them based on how they look and how they behave, and when and where you may find them in the garden.
We will explain why they are considered invasive, what damages they cause and how to respond should they invade your garden.
Some of these invasive pests have many look-alikes. We will point them out and contrast how they are different. A few insects that are not invasive but are considered pests will also be included in this talk.
Our speaker Jane Collier is an Oregon State University Extension Master Gardener who teaches for the award-winning 10-Minute University™ Program. Jane’s expertise encompasses growing vegetables and small fruits, insect pests, and container gardening. Jane has many instructional videos to her credit. Today, she and her husband subsistence farm their five-acre home garden which yields a bounty each year.
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