Shrubs I
Zoom WAThe Friendly, Fearless, and Forgiving. This class covers basic cuts, basic plant habits and what Cass Turnbull called the “pruning budget." We will provide examples of five plants that are relatively easy to prune: nandina, evergreen azalea, lilac, camellia, and yew. Taught by Mary Machala NOTE: We had anticipated returning to in person classes on […]
Art or Atrocity?
Zoom WAThis class covers the three main forms of mal-pruning: tree topping, inappropriate shearing of trees and shrubs, and over thinning. We compare and contrast mal-pruning with bona fide examples of pruning art: pollarding, cloud pruning, topiary, pleaching, and coppicing. This class ends on a humorous note with photos of the Good, the Bad, and the […]
Meeting of Like Minds — Allen Taylor: Trees and a Warming Climate: Strategies for Management and Adaptation
Zoom WAThis MOLM will be available to members at no cost; nonmembers are able to purchase tickets to this presentation for $10. Trees and a Warming Climate: Strategies for Management and Adaptation The science behind and effects of climate change are undeniable. The value and benefits of trees in the face of climate change is also undeniable. […]
Rose Pruning
Zoom WALearn the basics of rose pruning and how to approach the different types of roses, including hybrid tea, shrub and climbing roses. Taught by Keith Dekker Online Sunday classes will not be recorded for later viewing.
How To Renovate And Prune The Overgrown Garden
Zoom WAThis is one of PlantAmnesty’s most popular classes and offers an introduction to pruning and landscape renovation. You will learn how to undo overplanting errors, renovate neglected plants, clean up the landscape and determine when transplanting might be the best option. Taught by Shondell Kelley Are you a member? Please login to your account before registering. Would you […]
Fruit Tree Pruning
Zoom WALearn the basics of fruit tree pruning and why your pruning strategies might be different when you prune for production. This class will cover apple, cherry, plum and pear trees. Dormant season is a good time to prune many of our more common fruit trees, but summer pruning may be better for some fruits and […]
Japanese Garden Pruning
Zoom WACreating and maintaining a Japanese Garden requires a high level of pruning skill and dedicated annual maintenance. This class covers the pruning of Japanese maples (upright and weeping), bamboo, cloud pruning pines and tamamono shearing. Taught by Bess Bronstein
Art or Atrocity?
Zoom WAThis class covers the three main forms of mal-pruning: tree topping, inappropriate shearing of trees and shrubs, and over thinning. We compare and contrast mal-pruning with bona fide examples of pruning art: pollarding, cloud pruning, topiary, pleaching, and coppicing. This class ends on a humorous note with photos of the Good, the Bad, and the […]
Rehabilitative Pruning
Zoom WALearn how to restore the natural shapes of trees and shrubs that have been mal-pruned. The three most common forms of mal-pruning (tree topping, over-thinning of trees and shrubs, and inappropriate shearing) will be reviewed. Included are discussions of water-sprouts, suckers, radical renovation techniques, and crown restoration. Taught by Christina Pfeiffer
Rehabilitative Pruning
Zoom WALearn how to restore the natural shapes of trees and shrubs that have been mal-pruned. The three most common forms of mal-pruning (tree topping, over-thinning of trees and shrubs, and inappropriate shearing) will be reviewed. Included are discussions of water-sprouts, suckers, radical renovation techniques, and crown restoration. Taught by Shondell Kelley
Meeting of Like Minds — Eyes in the Field with Sharon Collman
Zoom WAThis MOLM will be available to members at no cost; nonmembers are able to purchase tickets to this presentation for $10. The Pacific Northwest is experiencing multiple invasions by insects (and diseases). These arrive with plants, soil, and seeds, in shipping containers, on shipping vehicles, and in household goods. Several are poised on our borders, […]
Vine Pruning 10.10.2021
Zoom WAThis class covers pruning and management of some of our most common ornamental vines: wisteria, common varieties of clematis, Boston ivy/Virginia creeper, trumpet vine and honeysuckle. Taught by Laura Watson
Vine Pruning 10.5.2021
Zoom WAThis class covers pruning and management of some of our most common ornamental vines: wisteria, common varieties of clematis, Boston ivy/Virginia creeper, trumpet vine and honeysuckle. Taught by Laura Watson
How To Renovate And Prune The Overgrown Garden
Zoom WAThis is one of PlantAmnesty’s most popular classes and offers an introduction to pruning and landscape renovation. You will learn how to undo overplanting errors, renovate neglected plants, clean up the landscape and determine when transplanting might be the best option. Taught by Christina Pfeiffer Are you a member? Please login to your account before registering. Would you […]
How To Renovate And Prune The Overgrown Garden
Zoom WAThis is one of PlantAmnesty’s most popular classes and offers an introduction to pruning and landscape renovation. You will learn how to undo overplanting errors, renovate neglected plants, clean up the landscape and determine when transplanting might be the best option. Taught by Shondell Kelley Are you a member? Please login to your account before registering. Would you […]
Meeting of Like Minds — Renovation of the Historic Rhododendron Glen in UW Botanic Gardens
Zoom WAEnjoy our MOLM as a free, members-only benefit. Please remember to log in before attempting to purchase tickets for this event. Join us to learn about the ongoing renovations in the Rhododendron Glen--one of the oldest collections in the Arboretum--with many magnificent trees, rhododendrons, and companion plantings. Ray Larson has been the the Interim Director […]
Japanese Garden Pruning
Zoom WACreating and maintaining a Japanese Garden requires a high level of pruning skill and dedicated annual maintenance. This class covers the pruning of Japanese maples (upright and weeping), bamboo, cloud pruning pines and tamamono shearing. Taught by Bess Bronstein
Japanese Garden Pruning
Zoom WACreating and maintaining a Japanese Garden requires a high level of pruning skill and dedicated annual maintenance. This class covers the pruning of Japanese maples (upright and weeping), bamboo, cloud pruning pines and tamamono shearing. Taught by Bess Bronstein
Shrubs III
Zoom WAThe Puzzlers and Consequences. This class teaches how to prune Rhododendron, Hydrangea, Callicarpa (Beautyberry), Viburnum bodnantense and Abelia. Included in this class are basic pruning techniques, common pruning mistakes and corrective pruning. Taught by Bess Bronstein
Shrubs III
Zoom WAThe Puzzlers and Consequences. This class teaches how to prune Rhododendron, Hydrangea, Callicarpa (Beautyberry), Viburnum bodnantense and Abelia. Included in this class are basic pruning techniques, common pruning mistakes and corrective pruning. Taught by Shondell Kelley
Meeting of Like Minds — Fruit Trees Simplified: Easy Harvest Pruning
Zoom WAEnjoy our MOLM as a free, members-only benefit. Please remember to log in before attempting to purchase tickets for this event. Timed pruning offers a revolutionary approach to fruit tree care, winter prune for shape and summer prune to keep trees small and easy. This presentation covers fruit tree basics: the simple logic of pruning, […]
Shrubs II
Zoom WAShearables, Hackables & Untouchables. Some plants can be cut to the ground each year, but there are others you barely touch and it's pandemonium! Find out which ones are which, as well as which plants are appropriately sheared every year. Plants discussed include butterfly bush, lavatera, heather, lavender, rockrose and witch hazel. Taught by Keith […]
Shrubs II
Zoom WAShearables, Hackables & Untouchables. Some plants can be cut to the ground each year, but there are others you barely touch and it's pandemonium! Find out which ones are which, as well as which plants are appropriately sheared every year. Plants discussed include butterfly bush, lavatera, heather, lavender, rockrose and witch hazel. Taught by Keith […]
May Webinar: Engaging the community to obtain data on forest health
Zoom WAThe Forest Health Watch is designed to engage communities in research and learning about native plant health issues. The pilot project of the program is focused on the dieback of Thuja plicata, and community scientists are needed to accelerate the research. Western Red Cedar is a critical component of native cultures and ecosystems in the […]
Shrubs I
Zoom WAThe Friendly, Fearless, and Forgiving. This class covers basic cuts, basic plant habits and what Cass Turnbull called the “pruning budget." We will provide examples of five plants that are relatively easy to prune: nandina, evergreen azalea, lilac, camellia, and yew. Taught by Mary Machala Are you a member? Please login to your account before registering. Would you […]
Shrubs I
Zoom WAThe Friendly, Fearless, and Forgiving. This class covers basic cuts, basic plant habits and what Cass Turnbull called the “pruning budget." We will provide examples of five plants that are relatively easy to prune: nandina, evergreen azalea, lilac, camellia, and yew. Taught by Mary Machala Are you a member? Please login to your account before registering. Would you […]
Meeting of Like Minds: How Trees Inspire John Gradé’s Art
Zoom WAEnjoy our MOLM as a free, members-only benefit. Please remember to log in before attempting to purchase tickets for this event. John Gradé (American, born 1970 in Minneapolis, MN) lives and works in Seattle, WA. Inspired by changing geological and biological forms and systems in the natural world. John works with his studio team […]
Tree Pruning II
Zoom WAThis class will show you how, what and when to do specific types of tree pruning. Structural pruning of young trees is covered, as well as mature tree pruning techniques including crown cleaning, crown thinning, crown raising and crown reduction. Pruning cycles, pruning doses, and seasonal timing are explained. Mal-pruning is defined (tree topping, lion’s […]
Tree Pruning II
Zoom WAIt is STRONGLY advised to have taken Trees I prior to this class. This is the “How- to” class for the practical application of the pruning concepts learned in Trees I. See examples of good and bad pruning decisions. Learn the best practices for making pruning cuts, training young trees and tree maintenance. Examples for […]
March Webinar: The values of public parks, exemplified by the Cass Turnbull Garden
Zoom WAJoin Daniel Winterbottom, Professor of Landscape Architecture at the University of Washington, as he describes the contributions that he and his students are making to the creation of the Cass Turnbull Garden, including their design for the southern section of the garden, and their installation of key features in the garden’s north section. In each of […]
Tree Pruning I
Zoom WAPruning trees makes sense when you understand the science behind it. You will be introduced to the basics of tree biology, including apical dominance and tree responses to wounding (development of callus and woundwood, as well as compartmentalization of decay). Tree structure is covered, with discussion of branch attachments, codominant stems and included bark. Proper […]
Tree Pruning I
Zoom WAThis class is a prerequisite for Trees II. This is the science behind our pruning decisions. In this class you will be introduced to a tree’s structure and biology. You will learn how and why trees respond to various events. Better outcomes can be achieved when you learn to work with a trees natural processes […]
Meeting of Like Minds: The Evolution of the Cass Garden
Zoom WAEnjoy our MOLM as a free, members-only benefit. Please remember to log in before attempting to purchase tickets for this event. The evolution of the Cass Turnbull Garden on Capitol Hill has been underway for the past 3+ years. Join Kate Day as she describes how the garden has gradually emerged through partnerships and […]
Rose Pruning
Zoom WALearn the basics of rose pruning and how to approach the different types of roses, including hybrid tea, shrub and climbing roses. Taught by Keith Dekker Online Sunday classes will not be recorded for later viewing.
Rose Pruning
Zoom WALearn the basics of rose pruning and how to approach the different types of roses, including hybrid tea, shrub and climbing roses. Taught by Shondell Kelley Online Tuesday evening classes will be recorded. Recordings will be available for viewing by registrants for two weeks following the class date.
Founder’s Memorial Lecture: Cassisms and Other Fun
Zoom WAWe apologize but due to logistical issues we will not be hosting the Founder's Memorial lecture on January 19th. Please continue to remember Cass's fun ways and " Find the True Form of the Plant and accentuate it!" --Thank you, the Outreach Team at PA Aloha, friends of PlantAmnesty! Join us this January for our […]
Fruit Tree Pruning
Zoom WALearn the basics of fruit tree pruning and why your pruning strategies might be different when you prune for production. This class will cover apple, cherry, plum and pear trees. Dormant season is a good time to prune many of our more common fruit trees, but summer pruning may be better for some fruits and […]
Fruit Tree Pruning
Zoom WALearn the basics of fruit tree pruning and why your pruning strategies might be different when you prune for production. This class will cover apple, cherry, plum and pear trees. Dormant season is a good time to prune many of our more common fruit trees, but summer pruning may be better for some fruits and […]
Trees II: Am I Helping or Harming?
Zoom WAIt is STRONGLY advised to have taken Trees I prior to this class. This is the “How- to” class for the practical application of the pruning concepts learned in Trees I. See examples of good and bad pruning decisions. Learn the best practices for making pruning cuts, training young trees and tree maintenance. Examples for specific species will be given. The […]
2020 Holiday Party and Annual Meeting
Zoom WAJoin us for a virtual celebration of our year! 2020 brought some unique challenges, but we have a strong community, and we pulled through together! Let's look back over what we accomplished and look forward to 2021. Virtual bar (BYOB) and engaging slide show begin at 6:45 pm. Our Events Committee is planning an exciting […]
Restoration of the West Duwamish Greenbelt
Zoom WAExploring the West Duwamish Greenbelt – Seattle’s Largest Contiguous Forest The West Duwamish Greenbelt carpets the eastern flank of West Seattle overlooking the Duwamish River and the industrial space along it. It retains layers of history in the patchwork forest mosaic, from old growth madrone on the top of the ridge to recent restoration efforts […]
Rehabilitative Pruning
Zoom WALearn the three most common forms of mal-pruning (tree topping, over-thinning of trees and shrubs, and inappropriate shearing) and how to fix trees and shrubs that have been mal-pruned. Included is a discussion on waterspouts, suckers, radical renovation techniques, and crown restoration. Taught by Christina Pfeiffer
Meeting of Like Minds: The Dirt Trilogy: Destruction, Insight, and Cure.
Zoom WADavid R. Montgomery and Anne Bikle This event is FREE to all PlantAmnesty members. Please login before registering! Authors David R. Montgomery and Anne Biklé will draw on the three books comprising their Dirt Trilogy to tell the tangled and intriguing story of humanity’s relationship with soil. They’ll take us on a journey from […]
Art or Atrocity?
Zoom WAThis class covers the three main forms of mal-pruning: tree topping, inappropriate shearing of trees and shrubs, and over thinning. We compare and contrast mal-pruning with bona fide examples of pruning art: pollarding, cloud pruning, topiary, pleaching, and coppicing. This class ends on a humorous note with photos of the Good, the Bad, and the […]
Tree Hugger Bingo with Ciscoe Morris
Zoom WALooking to donate? Click here! Registration closes at 4:00. Check in between 6:30 pm – 7:00 pm. Bingo starts at 7:00 pm! Join us for an online evening of fun with Ciscoe! During check in, we’ll share stories and recipes and ask attendees to show off their costumes. At 7 o'clock sharp, we will have […]
How To Renovate And Prune The Overgrown Garden
Zoom WAThis is one of PlantAmnesty’s most popular classes and offers an introduction to pruning and landscape renovation. Learn how to undo overplanting errors, learn more about transplanting and cleaning up the landscape. Taught by Keith Dekker Are you a member? Please login to your account before registering. Would you like to become a member and enjoy a discount on […]
Webinar: Science-Based Strategies For Using Wood Chips with Clay Antieau
Zoom WAWood chips have been commonly used as a mulch for many years yet this usage is based on misconceptions and a very narrow understanding of the function of wood in and on soil. A more strategic use of wood chips in ecosystem restoration and ornamental landscapes in the Pacific Northwest has the potential to be […]
Meeting of Like Minds: Science-Based Strategies For Using Wood Chips with Clay Antieau
Zoom WAFree for Members! Wood chips have been commonly used as a mulch for many years yet this usage is based on misconceptions and a very narrow understanding of the function of wood in and on soil. A more strategic use of wood chips in ecosystem restoration and ornamental landscapes in the Pacific Northwest has the […]
Shrubs III
Zoom WAThe Puzzlers and Consequences. This class teaches how to prune Rhododendron, Hydrangea, Callicarpa (Beautyberry), Viburnum bodnantense and Abelia. Included in this class are basic pruning techniques, common pruning mistakes and corrective pruning. Taught by Lauren Rogers Are you a member? Please login to your account before registering. Would you like to become a member and enjoy a discount on […]
Japanese Garden Pruning
Zoom WACreating and maintaining a Japanese Garden requires a high level of pruning skill and dedicated annual maintenance. This class covers the pruning of Japanese maples (upright and weeping), bamboo, cloud pruning pines and tamamono shearing. Taught by Bess Bronstein
Shrubs I
Zoom WAThe Friendly, Fearless and Forgiving. This class covers basic cuts, basic plant habits and what Cass Turnbull called the “pruning budget." It also covers five plants that are relatively easy to prune: nandina, evergreen azalea, lilac, camellia and yew. Taught by Anna Moore Are you a member? Please login to your account before registering. Would you like to […]
Plant Geek Trivia Night–CANCELED
Zoom WADon't be an outlier! Get in line to go online for our Plant Geek Trivia Night! Gather your forces to face off against the fertile (and possibly sneaky) mind of George Lasch as he challenges you to root deep into your plant knowledge. Admission is free for this social event. We encourage you to talk […]
Vine Pruning: June 16
Zoom WAThis class covers pruning and management of some of our most common ornamental vines: wisteria, common varieties of clematis, Boston ivy/Virginia creeper, trumpet vine and honeysuckle. Taught by Laura Watson
Tree Pruning I
Zoom WAThis is the science and biology behind the pruning of trees. Get the inside story on how trees grow and survive to become the longest lived, most massive species on the planet. Famous arboriculturalist Dr. Alex Shigo taught us that all pruning wounds trees. Find out how to minimize that damage and work with the […]
Rehabilitative Pruning
Zoom WALearn the three most common forms of mal-pruning (tree topping, over-thinning of trees and shrubs, and inappropriate shearing) and how to fix trees and shrubs that have been mal-pruned. Taught by Lauren Rogers
Shrubs II
Zoom WAShearables, Hackables & Untouchables. There are some plants that are cut to the ground each year, but there are others you barely touch and it's pandemonium! Find out which ones are which, as well as which plants are appropriately sheared every year. Plants include butterfly bush, lavatera, heather, lavender, rockrose and witch hazel. Taught by […]
Vine Pruning: May 31
Zoom WAThis class covers pruning and management of some of our most common ornamental vines: wisteria, common varieties of clematis, Boston ivy/Virginia creeper, trumpet vine and honeysuckle. Taught by Laura Watson