"50 Years and Counting" The 2023 Advanced Education Conference offers top-notch classes and instructors, and significant WSU-approved continuing education hours to statewide Extension Master Gardeners who serve our communities here in Washington State. Over 30 classes are taught on research-based gardening and environmental stewardship practices covering our Program Priorities and Extension Master Gardener leadership skills. The WSU Master Gardener Advanced Education Conference is open to the public.