Master Pruner Series and Certification

Each year PlantAmnesty expert instructors teach pruning techniques in our twelve-part Master Pruner Series. Topics include: artistic pruning, fruit trees, landscape renovation, Japanese garden pruning, ornamental vines, pruning roses, and species-specific tutorials. This series provides students with a solid base in the science and practice of selective pruning. Students are given access to a broad range of pruning information at each two-hour presentation. 

For a full description of the program, including class descriptions, schedule and fees, see 2017 Master Pruner Series, Classes and Workshops. Classes are open to master gardeners, landscapers, gardeners, horticulture students as well as the general public. Students may complete Master Pruner classes individually or complete the entire series. 

Two Ways to Take Classes

The Master Pruner series is available two ways:

  1. PlantAmnesty holds classes on the second Sundays of each month (except August and December) in the Brig at Magnuson Park (6344 NE 74th Street, Seattle 98115). Preregistration is not required. Just arrive a few minutes early and pay at the door. Cost: $25 per class, $20 for PlantAmnesty members, $5 for horticulture college students and native Spanish speakers. Join PlantAmnesty at any Magnuson Park pruning class and you will receive the following new member benefits: your first class free, an informational two-hour pruning DVD and a discount on future classes! 

  2. The ProHort Program of the University of Washington Botanic Garden’s Center for Urban Horticulture offers the the Master Pruner Series on weekdays each winter. Preregistration is required. Click here for details.

To receive a Master Pruner Certificate of Graduation, students are required to attend all twelve lectures (at either location) and three workshops provided by PlantAmnesty. A graduation ceremony is held each fall. Seminars attended at either location count towards the Master Pruner certificate, but the programs are administered and priced separately by the host organizations. 


Workshops are designed for home gardeners, landscape professionals, and students enrolled in the Master Pruner Series.  Complete details and materials are sent to students a few weeks prior to each workshop.  Do you know a yard that needs an Extreme Makeover? We are on the look-out for renovation workshop sites. Click here for 2017 site requirements.


 Spring 2016 Renovation Workshop

Yard Make Overs

Look at that overgrown yard! It needs so much work: weeding, pruning, plant removal, transplanting, bed enlarging, mulching, etc. PlantAmnesty has the solution with our new service. Read more about it here: Yard Make Overs

Upcoming Classes and Workshops

Master Pruner Series: Renovate and Prune the Overgrown Garden 

When:    Sunday, September 10, 2017-- 10am - noon
Where:   Sand Point Magnuson Park; 6344 NE 74th St (The Brig)
Fee:        $25/class; $20 for PlantAmnesty members; $5 for horticulture students and native Spanish speakers

PlantAmnesty’s most popular class, an introductory class on pruning and landscape renovation. Taught by Bess Bronstein

Spring Fruit Tree Field Day - June 24, 2017  Sold Out
Fall Renovation Workshop - September 16, 2017  Sold Out

The Renovation Workshop is a hands-on all-day event that features a low student-teacher ratio and real-world experience. Pruning and creative solutions to the overgrown garden are taught while a yard is renovated. Professional gardeners and arborists approved by PlantAmnesty teach the workshop. Instructors, arborists, and others volunteer their time to put on this workshop.

 Click here for printable PDF of Workshop registration form.

Pruning Workshop (in Spanish) - October 6, 2017

This class and hands-on field day is designed for Spanish-speaking landscape professionals. The morning lecture will be given in Spanish by George Ortiz, CLT. In the afternoon everyone will assemble at a landscape for hands-on practice on common landscape trees and shrubs. Participants will work in small groups with experienced teachers. A PlantAmnesty certification of completion will be given.

Click here for a printable PDF of Workshop registration form (in English).

Click here for a printable PDF of Workshop registration form (in Spanish).

To see all of our upcoming events, classes and workshops, View our Calendar

Questions?  Contact us at or 206-783-9813.