Clackamas County Master Gardeners 10-Minute University™ offers a series of short classes offering research-based gardening know-how. All presentations are free!
Pruning Ornamental Trees
Wednesday, January 18, 2023, Noon–1 p.m.
This online seminar is free with advanced registration.
Are you confident with pruning? Do your trees have a strong framework and pleasing form? If not, this class can help. Learn how to build a strong tree that can better withstand wind, snow, ice, and heat. We will discuss components of a strong framework — branch placement and distribution, crotch angle, aspect ratio, taper, root architecture – all toward greater resiliency in this changing climate. Learn more
Fruit Tree Pruning
Wednesday, January 25, Noon–1 p.m.
This online seminar is free with advanced registration.
Do your fruit trees have a good form and produce a consistent crop every year? Can you reach it safely to prune and harvest? If not, this class can help. Learn proven practices that will boost your confidence in pruning and get you ready for a date with your trees. Learn more
Pruning Ornamental Shrubs
Wednesday, February 1, Noon–1 p.m.
This online seminar is free with advanced registration.
Do your shrubs meet your expectations? Or are they a congested, overgrown mess that are cringe-worthy? This class simplifies shrub pruning with step-by-step instructions on how to tackle common problems. We will address how to reshape shrubs into pleasing forms of abundant flowers and beautiful foliage. Learn more
Growing Blueberries
Wednesday, February 8, Noon–1 p.m.
This online seminar is free with advanced registration.
Everyone knows blueberries are delicious parcels of anti-oxidants, but how many are aware blueberry plants can live for decades if proper pruning keeps up the production of young fruiting wood? We will share best practices worked out through years of research by Oregon State University scientists. This class begins with how to choose among different varieties. Then we discuss soil preparations and planting techniques, followed by cultural practices including fertilizing, watering, and pruning. Finally, we review pest and disease problems and how to manage them.Learn more
Growing Caneberries
Wednesday, February 15, Noon–1 p.m.
This online seminar is free with advanced registration.
Fresh berries from Oregon’s Willamette Valley are delicious and easy to grow. Among our famous cane berries are: Marionberry, Boysenberry, Loganberry, and raspberry. This class will share best practices worked out through years of research by Oregon State University scientists. Beginning with how to choose among different types suitable for garden cultivation, we introduce terminologies to familiarize you with the world of berries! Learn more
Growing Tomatoes I: Variety & Seed Starting
Wednesday, February 22, Noon–1 p.m.
This online seminar is free with advanced registration.
This class is the first of three sessions on tomatoes. The first session focuses on variety selection and seed starting. Session 2 (3/29) will cover buying a good tomato start and what to do with it before the soil warms up. Session 3 (5/3) will cover planting out into the garden or container, supporting plants of various sizes, cultural practices (watering, fertilizing, pruning, etc.), and disease management. Learn more