Classes & Workshops


Master Pruner Certification

To receive PlantAmnesty’s Master Pruner certification, you will need to attend all 12 classes and 3 hands-on workshops.


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.

Classes are open to master gardeners, landscapers, gardeners, horticulture students as well as the general public.  Students may complete Master Pruner classes individually or work toward a Master Pruner certification by completing the entire series.

Please note: Due to the coronavirus pandemic, all Classes are currently being offered online only.

Go to Classes


Workshops are taught by experts in their field.  The workshops are hands-on all day events designed for home gardeners, landscape professionals, and students working towards completing the Master Pruner Certification.

Please note:  Due to the coronavirus pandemic, all Workshops have been postponed.

Go to Workshops

Workshop Sites

Do you know of a yard that needs an Extreme Makeover?  We are always on the look-out 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

Volunteer Yard Renovations

PlantAmnesty organizes one-day volunteer yard renovations for people without the means to do the job themselves, so that good pruning is available to all.

Once a year, PlantAmnesty gardeners meet to do for gardens what our arborists do for the trees on Arbor Day.  It’s a cross between a party and a yard clean-up.  Yeah, that’s it, it’s a Garden Party.  Mostly, we weed like dirt devils, deadwood ’til the carpal tunnel kicks up, and kill what needs to be killed (plant-wise, that is).

With ten or twelve dedicated gardeners, we utterly transform a needy and deserving landscape in one sunny (and it’s always sunny) afternoon.  It is extremely gratifying. Experienced gardeners share with the new kids.  Hobbyists mingle with the pros.  You get to check out how others rig their trucks, what tools they use, and especially – you professional gardeners – separate your charity work from your regular work!

A PlantAmnesty arborist will do the same for trees. Up to twenty companies gather to prune deserving trees for their community. For Greater Seattle and Pierce County only.

Contact us for info about the next yard renovation event.

Upcoming Classes

May 04

Shrubs I

May 4 @ 7:00 pm - 9:00 pm
May 09

Shrubs I

May 9 @ 10:00 am - 12:00 pm

Upcoming Events

Mon 19

Spring Shin-Dig 2021

April 19 @ 12:00 pm - May 2 @ 10:00 pm


PO Box 15377
Seattle, WA 98115-0377