Washington Green School
Green School
Washington Gardening Course from WSU Extension
Welcome to Washington Green School!
Want to be the first to know when Green School registration opens for the 2026-2027 session? Just fill out the form, and we’ll make sure you’re notified as soon as enrollment begins this summer!
Love gardening but find it challenging in Washington’s unique climates?
Green School can help! Learn research-based techniques to create a thriving garden that also benefits our environment. From water conservation to supporting local ecosystems, discover how your gardening choices make a difference.
Washington’s diverse landscapes deserve our care.
Green School empowers gardeners to protect our environment while creating beautiful spaces. Learn how your gardening practices impact our water, air, and local wildlife. Gain the skills to garden sustainably and make a positive difference.
Gardening in Washington has a reputation for being easy—we live in the Evergreen State, after all. But we all know the reality can be more challenging, especially as the climate continues to change. Environmentally responsible gardening practices, grounded in horticultural research, are crucial in Washington to protect our state’s diverse ecosystems, from the majestic mountains and unique shrub-steppe to the delicate coastal habitats, as well as the health of our rural, suburban, and urban communities. The ways in which we garden make a difference to our shared water and air, as well as the broader agricultural economy. Each of us has a role to play in promoting the diversity of plants and animals that live around us.
Join us!
Join a community of gardeners dedicated to protecting Washington’s environment. Green School provides the knowledge and skills to garden responsibly in our changing climate. Learn practical techniques, connect with experts, and discover how your actions contribute to a healthier future for all.
Green School offers two distinct tracks in its online course: one for individuals looking to enhance their gardening skills through research-based horticultural and environmental stewardship, the Washington Gardener course, and another for those who wish to take it further by becoming a WSU Extension Master Gardener Program volunteer.
The PNW Gardener’s Handbook is the official course textbook and is available as a free public download.
Cover: Pacific Northwest Gardener’s Handbook – Growing for the Future