Woman with harvest of cucumbers

Green starts here

Registration open August 15-September 30

Green School

Washington Gardening Course from WSU Extension

Washington Green School logo

Washington Gardener Certificate

Earn a Washington Gardener Certificate when you successfully complete Green School.

If you are currently a new trainee, intern, certified or emeritus WSU Extension Master Gardener or a WSU employee, please see instructions below.

WSU Cougar head
WSU Extension Master Gardener mark

WSU Extension Master Gardener Volunteers, Interns, and Trainees

If you are currently a new trainee, intern, certified or emeritus WSU Extension Master Gardener volunteer, please contact your county Program Coordinator for specific registration instructions.


Refund Policy Reminder We understand that plans can change and unexpected things come up. However, please note that we’re unable to offer refunds for Green School once registration is complete.

We encourage you to review all course details before registering and reach out if you have any questions—we’re here to help!

Still have questions?