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UW Botanic Gardens
Upcoming Classes in Seattle
The University of Washington Botanic Gardens, part of the School of Environmental & Forest Sciences, consists of two sites: the Washington Park Arboretum and the Center for Urban Horticulture. With a diverse collection of over 20,000 plants and various amenities, these sites provide opportunities for education, research, and recreational activities.
16 classes have spots left
Soil Management Plan Components
This class is part of a six part series, Getting Down to Earth: Understanding soils for ecosystem resilience and repair. In this final class of the series students will share their soil management plans developed over the previous 5 classes and discuss them with their fellow students and instructors. Emphasis will be placed on best practices for changing climate and drought resiliency.
Creating a Child-Friendly Garden
UW Botanic Gardens @ Virtual Classroom
In his book, Last Child in the Woods, Richard Louv writes that “stress reduction, greater physical health, a deeper sense of spirit, more creativity, a sense of play…are the rewards that await a family when it invites more nature into their children’s’ lives.” If you are intrigued by the idea of making inviting and nurturing places for children within your own garden, this class will inspire and inform you! You‘ll learn ways to create...
$28
What's Wrong with My Houseplant?
Learn the normal life cycle of plants and how to troubleshoot leaf loss, pathogens, pests, watering and lighting issues. Ever wonder why your plant's leaves turn brown or yellow? In this class instructor Tassy de Give, co-author of Rooted in Design and Plant Director of Glasswing Greenhouse and Geometry Gardens, will discuss the normal life cycle of plants: what is acceptable leaf loss, how to identify and treat plant pathogens, common houseplant...
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Raising Seedlings for the Backyard Gardener
UW Botanic Gardens @ Virtual Classroom
Learn how to start seeds, upcycle seedling containers, harden off your seedlings and eventually plant them out. Growing your own food from seed is the truest form of sovereignty! Raising seedlings indoors saves money, extends your growing season & optimizes space in your garden beds. Learn how to create the perfect seedling, upcycle seedling containers, understand planting depths for different seeds, how to water them appropriately, how to...
$15
Profiles of the Hemisphere's Most Amazing Migrants
The Great Migration: Profiles of the Hemisphere's Most Amazing Migrants If you'd like to know more about how the most powerful birds in the world perform wonders of flight, come hear master birder and nature author Constance Sidles introduce you to the world-class migration specialists, including Bar-tailed Godwits, Arctic Terns, and many others. As the Earth tilts North America back into the Sun, birds all over the Southern Hemisphere feel...
Strange and Unusual Houseplants
Learn about the amazing life habits of unusual houseplants and how some have adapted to become epiphytic, camouflaged, or even predatory. Learn about the amazing life habits of unusual houseplants and how some have adapted to become epiphytic, camouflaged, or even predatory. Instructor Tassy de Give, co-author of Rooted in Design and Plant Director of Glasswing Greenhouse and Geometry Gardens, will discuss and show examples of some of the most...
The Permanent Garden: Planting Perennials
Learn the yummiest, most beneficial and prolific perennials suited to our PNW climate and rejoice in the diversity of food potential from plants that require the least maintenance. Want more harvesting abundance with less work? Plant perennials! Perennials have long life cycles and continue to give you food for several seasons and even years. Learn the yummiest, most beneficial and most prolific perennials suited to our PNW climate and rejoice...
Urban Container Gardening
Get design tips, plant options, and care instructions to keep a small scale garden happy and healthy. Early spring is the perfect time to create an outdoor container garden. Instructor Tassy de Give, co-author of Rooted in Design and Plant Director of Glasswing Greenhouse and Geometry Gardens, will offer design tips, plant options, and care instructions to keep a small scale garden happy and healthy. Learn how to style ornamentals throughout the...
From Egg to Empty Nest: How Birds Raise Their Young
If you'd like to learn more about birds' strategies to reproduce, let master birder Connie Sidles show you the secrets of birds' parenting lives. Raising the next generation is as problem-filled and fulfilling for birds as it is for people. Some birds go it alone; some use community help; some rely on family members. Sometimes the males help; sometimes the females are single moms. Some build their own homes; some borrow from others; some...
Plant CSI: What Happened to My Flowering Cherry Tree?
Become a Plant Crime Scene Investigator (CSI)! Learn about key plant diseases and insect pests that can cause problems for favorite trees and shrubs in the landscape. There is nothing quite as exciting as a flowering cherry tree (Prunus spp.) beginning to bloom after a long cold winter. So it is quite disappointing to see flowers and leaves start to suddenly wilt, or oozing from cankers on the stems and trunks. Prunus species and varieties are...
Oil Painting: Daisies and Hydrangeas
In this interactive online class, we will be painting a bright and colorful floral and garden scene painting using oil paints. For reference photos, photos featured from the UW Botanic Gardens plant collections at the Center for Urban Horticulture and Washington Park Arboretum will be used as examples. Using these examples and other photos, participants will learn how to simplify shapes, apply color theory concepts and create paintings that...
Plant CSI: Why Does my Japanese Maple Look so Bad?
Become a Plant Crime Scene Investigator (CSI)! Learn about key plant diseases and insect pests that can cause problems for favorite trees and shrubs in the landscape. Japanese maples (Acer palmatum) are wonderful specimen trees in the landscape, showing off many form and color variations. Yet often stems will die back, and sometimes even large limbs or an entire tree will die. It sometimes appears to happen overnight! This online course...
Tree Pruning I
This is a two hour slideshow on tree pruning (not including fruit or nut trees). How to prune a tree limb will be covered, including branch collar identification and the basics of compartmentalization. Also discussed--early training of trees, included bark, double leaders, ANSI tree pruning standards, crown cleaning, crown raising, utility line clearance pruning, mature tree pruning. Mal-pruning will be shown and defined (tree topping, lion's tailing,...
Shrub Pruning I
UW Botanic Gardens @ Virtual Classroom
This 2-hour slideshow covers basic cuts, basic plant habits, and what Cass Turnbull called 'the pruning budget.' Then five plants which are relatively easy to prune are dealt with specifically: nandina, evergreen azalea, lilac, camellia, and yew. This lecture series is designed for those who work in landscape maintenance. Classes last two hours and each lecture provides information on tools and techniques for quality pruning with better long-term...
$35
Tree Pruning II
Beyond basic tree pruning is a world of related tree information which is not generally known to the public. This class presents the basics of Hazard Tree Evaluation (same as Risk Assessment), construction damage to trees, and rehabilitative pruning for previously mal-pruned trees. This lecture series is designed for those who work in landscape maintenance. Classes last two hours and are held on Tuesdays. Each lecture provides information...
Shrub Pruning II
How to prune butterfly bushes, lavatera, heather, lavender, rockroses, broom, and witch hazel, winter sweet and double-file viburnum. Handouts are available. Some plants get cut to the ground annually, others are barely touched or all hell breaks loose. Find out which ones are which, as well as which plants which are commonly--and appropriately--sheared every year. Also mentioned: Perovskia, Senecio greyi, and others. This lecture series is...
Shrub Pruning III
This class teaches us how to prune rhododendron, hydrangea, callicarpa, Viburnum bodnantense and abelia. Included in this two-hour slideshow are basic pruning techniques, common pruning mistakes and corrective pruning. This lecture series is designed for those who work in landscape maintenance. Classes last two hours and each lecture provides information on tools and techniques for quality pruning with better long-term results and customer...
Fruit Tree Pruning
UW Botanic Gardens @ 3501 NE 41st St, Seattle, WA
Learn the basics of fruit tree pruning. Covers apple, cherry, plum, and pear trees. This lecture series is designed for those who work in landscape maintenance. Each lecture provides information on tools and techniques for quality pruning with better long-term results and customer satisfaction. This class takes the confusion out of pruning common fruit trees.
$35
Saving Seeds 101: Reclaim the Ancient Art!
Seed saving is an ancient & vital human skill. Learn how to select which plants to save seed from, when and how to collect & how to best store. Growing and saving heirloom seed is an ancient communion between humans and the earth. Plant a seed once and reap the return in thousands of new seeds! Reclaim your sovereignty by learning how to select for the best plants, collect seed from the plant (each plant is a little different!) and store...
How To Prune and Renovate The Overgrown Landscape
This is the primary class of the series Master Pruner courses. It covers basic pruning of ornamental trees and shrubs as well as creative solutions to the overgrown or over-planted garden. The types of pruning cuts are shown and discussed. The concept of the 'pruning budget' is introduced. Plants are divided into three categories according to their natural habits and pruning techniques given for each. Before and after slides of pruning and...
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