Green starts here
Registration re-opens August 17, 2026
Green School
Pacific Northwest horticulture courses from WSU Extension
If you are currently enrolled in the 2025-2026 Washington Gardener Certificate, log in here until October 4, 2026.
The gate to the 2026-2027 Washington Gardener Certificate course swings open on August 17!
Come back between August 17 and September 30 to find the registration link and sign up to earn your Washington Gardener Certificate.
Interested in becoming a WSU Extension Master Gardener volunteer? The application window for the 2026–2027 class is currently open in many counties until September 1. If you are interested in becoming an Extension Master Gardener volunteer, please reach out to your county’s Program Coordinator.