Join Robert Brannen as he shows to choose a location, design, and build a rain garden at a free workshop from 7 to 8 p.m. Thursday, Feb. 21.

A rain garden is a shallow depression planted with grasses and plants to prevent runoff from entering the stormwater system.

Attendees who live in unincorporated Gwinnett County or the City of Lilburn can qualify for a maximum 5 percent credit toward their Stormwater Utility Fee for the following year.

The class will be presented at the Gwinnett Justice and Administration Center Auditorium, 75 Langley Drive, in Lawrenceville.

Pre-register by sending an email with your name, address, and phone number to dwrswreg@gwinnettcounty.com or calling 678.376.7193 and pressing 5.