Today

Shrubs I

Zoom WA

The 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 […]

$20.00 – $25.00

Art or Atrocity?

Zoom WA

This 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 […]

$20.00 – $25.00

Rose Pruning

Zoom WA

Learn 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.  

$15.00 – $20.00

How To Renovate And Prune The Overgrown Garden

Zoom WA

This 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 […]

$15.00 – $20.00

Fruit Tree Pruning

Zoom WA

Learn 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 […]

$15.00 – $20.00

Japanese Garden Pruning

Zoom WA

Creating 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

$15.00 – $20.00

Art or Atrocity?

Zoom WA

This 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 […]

$15.00 – $20.00

Rehabilitative Pruning

Zoom WA

Learn 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

$15.00 – $20.00

Rehabilitative Pruning

Zoom WA

Learn 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

$15.00 – $20.00

Vine Pruning 10.10.2021

Zoom WA

This 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

$15.00 – $20.00

Vine Pruning 10.5.2021

Zoom WA

This 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

$15.00 – $20.00

How To Renovate And Prune The Overgrown Garden

Zoom WA

This 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 […]

$15.00 – $20.00

How To Renovate And Prune The Overgrown Garden

Zoom WA

This 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 […]

$15.00 – $20.00

Japanese Garden Pruning

Zoom WA

Creating 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

$15.00 – $20.00

Japanese Garden Pruning

Zoom WA

Creating 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

$15.00 – $20.00

Shrubs III

Zoom WA

The 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

$15.00 – $20.00

Shrubs III

Zoom WA

The 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

$15.00 – $20.00

Shrubs II

Zoom WA

Shearables, 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 […]

$15.00 – $20.00

Shrubs II

Zoom WA

Shearables, 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 […]

$15.00 – $20.00

May Webinar: Engaging the community to obtain data on forest health

Zoom WA

The 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 […]

$5.00 – $10.00

Shrubs I

Zoom WA

The 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 […]

$15.00 – $20.00

Shrubs I

Zoom WA

The 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 […]

$15.00 – $20.00

Meeting of Like Minds: How Trees Inspire John Gradé’s Art

Zoom WA

Enjoy 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 […]

Free

Tree Pruning II

Zoom WA

This 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 […]

$15.00 – $20.00

Tree Pruning II

Zoom WA

It 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 […]

$15.00 – $20.00

March Webinar: The values of public parks, exemplified by the Cass Turnbull Garden

Zoom WA

Join 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 […]

Free

Tree Pruning I

Zoom WA

Pruning 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 […]

$15.00 – $20.00

Tree Pruning I

Zoom WA

This 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 […]

$15.00 – $20.00

Meeting of Like Minds: The Evolution of the Cass Garden

Zoom WA

  Enjoy 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 […]

Free

Rose Pruning

Zoom WA

Learn 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.  

$15.00 – $20.00

Rose Pruning

Zoom WA

Learn 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.  

$15.00 – $20.00

Fruit Tree Pruning

Zoom WA

Learn 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 […]

$15.00 – $20.00

Fruit Tree Pruning

Zoom WA

Learn 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 […]

$15.00 – $20.00

Trees II: Am I Helping or Harming?

Zoom WA

It 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 […]

$15.00 – $20.00

Rehabilitative Pruning

Zoom WA

Learn 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

$15.00 – $20.00

Meeting of Like Minds: The Dirt Trilogy: Destruction, Insight, and Cure.

Zoom WA

  David 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 […]

Free

Art or Atrocity?

Zoom WA

This 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 […]

$15.00 – $20.00

How To Renovate And Prune The Overgrown Garden

Zoom WA

This 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 […]

$15.00

Webinar: Science-Based Strategies For Using Wood Chips with Clay Antieau

Zoom WA

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 potential to be […]

$5.00 – $10.00

Shrubs III

Zoom WA

The 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 […]

$15.00 – $20.00

Japanese Garden Pruning

Zoom WA

Creating 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

$15.00 – $20.00

Shrubs I

Zoom WA

The 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 […]

$15.00 – $20.00

Plant Geek Trivia Night–CANCELED

Zoom WA

Don'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 WA

This 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

$15.00 – $20.00

Tree Pruning I

Zoom WA

This 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 […]

$15.00 – $20.00

Rehabilitative Pruning

Zoom WA

Learn 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

$15.00 – $20.00

Shrubs II

Zoom WA

Shearables, 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 […]

$15.00 – $20.00

Vine Pruning: May 31

Zoom WA

This 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

$15.00 – $20.00