PowerPoint Presentations

Contact us if you would like to arrange for a PlantAmnesty representative to give a presentation of any of the PowerPoint presentations below to your group or organization.

  • A Woman, a Plan, an Organization: PlantAmnesty

    This inspirational one- or two-hour slideshow covers the genesis, mission, and history of PlantAmnesty. Using a combination of humor and controversy, PlantAmnesty has had considerable success utilizing mass media to educate the public regarding the need for better plant care.

    The slideshow can be adapted to a variety of audiences and can emphasize 1) partnerships with professional arborist organizations; 2) partnerships with gardening organizations, urban forestry groups and city departments; 3) the grassroots approach; 4) using the media; and/or 5) the power of goal setting and personal commitment.

    In 1990, in the Seattle yellow pages, 61% of the tree service display advertisements listed “topping” as a service. In 1998 that number had dropped to 45%, and in 2003 it had dropped to a mere 8%. This slideshow tells how PlantAmnesty spearheaded this remarkable change and will give the audience tools and inspiration to implement their own ambitious programs.

  • Tool Talk

    Professional gardeners bring their tools (pruning and gardening) to class for this popular show and tell seminar. Common and uncommon tools will be featured, their care, and sources for purchase.

  • 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, over-thinning), as will crown restoration. Some specific trees will be covered--magnolia trees, ornamental crabapple, cherry and purple-leafed plum trees.

  • Trees 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.

  • Shrubs I : The Friendly, Fearless and Forgiving

    This 2-hour slideshow covers basic cuts, basic plant habits, and what Cass Turnbull calls 'the pruning budget.' Then five plants which are relatively easy to prune are dealt with specifically: nandina, evergreen azalea, lilac, camellia, and yew.

  • Shrub Pruning II - The Hackables, the Shearables, and the Untouchables

    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.
  • Shrubs III : The Puzzlers and The Consequences

    This class teaches us how to prune rhododendron, hydrangea, callicarpa, Viburnum bodnantense and abelia. Included in this two-hour slideshow are basic pruning techniques techniques, common pruning mistakes and corrective pruning. Upon request this slideshow may also contain Wisteria and Japanese laceleaf maple.
  • Rehabilitative Pruning for Previously Mal-Pruned Plants

    This slideshow describes 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 which have been mal-pruned. This is an advanced course and those attending should already be familiar with principles of selective pruning. Included is discussion of water-sprouts, suckers, radical renovation techniques, and crown restoration.
  • Panel of Experts Q and A

    A panel of pruning experts will be assembled to answer questions from the audience. The event will be moderated and some lively discussion should ensue. Some potential questions: Is it really necessary to disinfect pruning tools? Can thinning conifer trees for safety do more harm than good? Can fruiting cherry trees be pruned for size control? How much does summer pruning inhibit water sprout production? What is 'eradicative pruning' and does it work? Two hours.
  • Japanese Garden Pruning

    This class will cover pruning Japanese upright maples (fan pruning), Japanese laceleaf maples (shell pruning), pruning pines (cloud pruning) and shearing masses of lower story plants.
  • How to Prune and Renovate the Overgrown Garden

    This is the primary class of the series Master Pruner courses given by Cass Turnbull. 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 diagrams will be used to illustrate pruning for size reduction and pruning for definition (thinning). And students will gain insight into the process of yard renovation, where pruning is but one tool in restoring a garden.
  • My Rhody's Too Big, Too Leggy or Too Ugly-- and what can be done about it.

    The Northwest's 'signature plant' is the rhododendron. It is also one of the hardest to prune. Find out what can, and can't be done to fix an unsatisfactory rhododendron situation. This 1-2 hr slideshow covers deadwooding, maintenance pruning, transplanting, arborizing, radical renovation, and 'nicking the buds'.

  • Pruning Art or Pruning Atrocity? A slideshow of pruning horrors

    This two hour slideshow covers the three main forms of mal-pruning-tree topping, inappropriate shearing of trees and shrubs, and over-thinning. Then we compare and contrast mal-pruning with bona-fide examples of pruning art: pollarding, cloud pruning, topiary, pleaching, and coppicing. The class ends on a humorous note as slides are shown of 'the Good, the Bad, and the Bizarre'.

  • Vines

    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.