Skip to main content Skip to navigation


Rain garden schematic showing the features of a rain garden.

Are you wondering about rain gardens?

Welcome to Washington State University Extension’s rain garden website. This site provides everything you need to know about rain gardens; from the basics of how they work to building your own — AND where to get more help if you need it.

Online training opportunity!
Learn about designing and maintaining Low Impact Development (LID)  systems with this new online, self-paced course from the Washington Stormwater Center. Certificate available.

Free Rain Garden Poster!

We are pleased to offer this beautiful 2-sided poster for you to download. Total size is 25″ x 19″. The front is full-color and the back is black and white. For a high resolution file (92.5MB-very large) suitable for printing please contact us via email. Click here for a low resolution downloadable copy of the poster suitable for creating flyers.

Copyright Good Nature Publishing 2016 artwork by John C. Pitcher

Rain Garden illustration available for free download.

Rain Garden poster - back with detailed text about rain gardens

This WSU Extension web sites provide links to external sites for the convenience of users. These external sites are not managed by the WSU Extension. Furthermore, WSU Extension does not review, control or take responsibility for the content of these sites, nor do these sites implicitly or explicitly represent official positions and policies of WSU Extension.

Learn online!

Watch Building a Rain Garden in the City and learn why, where and how to build a rain garden. Less than 5 minutes.

Salish Sea Ecosystem Conference.  The 2020 Conference was held online due to COVID-19. Many of the presentations are posted.

The 2020 Green Infrastructure Conference was held virtually. Presentations are posted online.

Learn more about water at WSU Extension’s website: Washington’s Water.

Do you live on the shoreline in Washington? Become a Shore Steward.

WSU Extension’s newsletter

Subscribe today


Visit our partners

12000 Rain garden logo link

Master Gardener Program logo link to

Washington Stormwater Center logo link to