PlantAmnesty instructors teach pruning techniques through our Master Pruner Program. A series of twelve 2-hour classes and three hands-on workshops provide students with a solid base in the science and practice of selective pruning. Our instructors are professionals in the field and bring years of personal experience to their classes.

Our classes are open to professionals and to the general public and may be taken individually for specific interests.

The nine core classes include:

  • Tree Pruning I and II
    Tree Pruning I should be taken before Tree Pruning II or Fruit Trees.
  • Shrubs I, II, and III
  • Fruit Trees
  • Art or Atrocity
  • How to Prune and Renovate the Overgrown Garden
  • Rehabilitative Pruning

An additional three specialty classes from our offering can be selected for a total of twelve classes.

Our core classes and two specialty classes will be offered through our online Sunday morning schedule. Selected classes, which may include some of the most popular core classes, will be offered in person, schedule yet to be determined. Additionally, new classes under development will be offered in person or online outside of our Sunday morning schedule. Online class recordings are available for two weeks after the class date.  There are no provisions for viewing the recordings outside the established schedule.

Please note that if you are registering multiple students for in-person or online classes, we encourage you to enter their names and email addresses during registration, ensuring that they will receive class handouts and a Zoom reminder sent directly to their email addresses for online classes. For in-person classes, we need to know attendees names for registration check-in.

Go to Classes >

2024 Sunday Online Class Schedule (pdf) >

Learn about the Cass Turnbull Memorial Scholarship >

Pruning Basics PDF download  >


Experts in their field teach workshops.  The workshops are hands-on, all-day events designed for home gardeners and landscape professionals.  Three workshops, two of which must be Renovation Workshops, are required to complete the Master Pruner Program.

Go to Workshops >

Upcoming Classes

Shrubs I: The Friendly, Fearless, and Forgiving (Christina Pfeiffer)

June 9 @ 10:00 am - 12:00 pm PDT
More info >

Shrubs II: Shearables, Hackables, and Untouchables (Christina Pfeiffer)

July 14 @ 10:00 am - 12:00 pm PDT
More info >

Shrubs III: The Puzzlers and Consequences

July 28 @ 10:00 am - 12:00 pm PDT
More info >

Corrective Pruning

September 29 @ 10:00 am - 12:00 pm PDT
More info >

Vine Pruning

October 13 @ 10:00 am - 12:00 pm PDT
More info >

Pruning Art or Pruning Horror?

November 10 @ 10:00 am - 12:00 pm PST
More info >

Upcoming Workshops

Check back for upcoming classes

Pruning Sites

We are always on the lookout for renovation workshop sites. Take a look at our site requirements, and if you think that you are a good fit, contact us at

Go to Site Requirements >

Group 2019 0518