The science and biology behind tree pruning with minimal injury to the tree. Taught by Bess Bronstein Register with UW Botanic Gardens

The "how-to's" for making good cuts, structural pruning for trees of any age, pruning standards, and crown restoration. Taught by Bess Bronstein Register with UW Botanic Gardens

Learn the basics of fruit tree pruning and why you should prune them differently than other trees. This class will cover apple, cherry, plum and pear trees. Taught by Ingela Wanerstrand

The Friendly, Fearless an Forgiving.  This talk will focus on nandina, evergreen azalea, lilac, camellia and yew pruning. Taught by Mary Machala Register with UW Botanic Gardens

The Shearables, Hackables and Untouchables.  Find out which plants are which, and how to correctly shear. Taught by Christina Pfeiffer Register with UW Botanic Gardens

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 […]

This is the HOW TO class for pruning trees (not fruit or nut trees). How to prune a tree limb, how to find the branch collar, pruning young and mature trees, pruning standards, crown restoration and the basics of tree risk assessment are covered. Taught by Ellie Bender

Basic pruning & creative solutions for the overgrown or overplanted landscape Taught by Shawna Van Nimwegen     Register with UW Botanic Gardens

Learn the right way to prune roses: hybrid teas, climbers & landscape roses Taught by Emily Ross Register with UW Botanic Gardens

Learn the basics of rose pruning and how to approach the different types of roses, including - hybrid tea, shrub and climbing roses. We will provide resources to great local organizations and how to approach pruning roses in Western Washington. Taught by Keith Dekker

The Friendly, Fearless an 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 George Lasch

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 […]

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. Taught by Don Marshall  

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 George Lasch

Specialized pruning techniques for Japanese maples, bamboo, cloud pruning of pines, and tamamono shearing will be covered. Taught by Bess Bronstein Register with UW Botanic Gardens

The Puzzlers & Consequences Taught by Ken Tuomi Register with UW Botanic Gardens

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 Shawna Van Nimwegen

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 […]

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

Conifers play by different rules than their flowering friends. This class will cover timing and where to make cuts that will help conifers stay vibrant. Taught by Bess Bronstein

This class covers pruning and management of some of our most common ornamental vines: wisteria, common varieties of clematis, Boston ivy/Virginia creeper, honeysuckle, and trumpet vine Taught by Laura Watson Register with UW Botanic Gardens

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. Taught by Ingela Wanerstrand Register with UW Botanic Gardens

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

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

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

Three forms of mal-pruning will be explained and compared with bona-fide examples of pruning art such as pleaching, pollarding, and coppicing. Taught by Christina Pfeiffer Register with UW Botanic Gardens

This advanced class will discuss how to restore mal-pruned trees and shrubs. Taught by Christina Pfeiffer Register with UW Botanic Gardens

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 […]

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

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 […]

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

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 […]

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

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 […]

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

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 […]

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 […]

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 […]

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

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 […]

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 […]

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 […]

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.  

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.  

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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

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 […]

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

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

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

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

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 […]

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 […]

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

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

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

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

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 […]

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

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 […]

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 […]

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.  

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. This class will be recorded and available for viewing by registrants for 2 weeks following the class date. Taught by Laura Watson

Pruning trees makes sense when you understand the science behind it. You will be introduced to the basics of tree biology and structure, tree responses to the basic types of pruning cuts, and pruning standards and best management practices. This class will be recorded and available for viewing by registrants for 2 weeks following the […]

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. This class will be recorded and available for […]

This class will show you how, what and when to apply a specific pruning system. This class will cover the natural pruning system, including structural pruning of young trees, as well as mature tree pruning techniques (crown cleaning, crown thinning, crown raising, crown reduction). More formal systems including pollarding, espalier, and pleaching are also covered. […]

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 […]

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 […]