Nearly three weeks after the city began enforcing mandatory curbside composting, the Department of Sanitation is telling Queens locals to come reap their rewards.

Starting Wednesday, April 23, residents in Queens will have a new, local option to get their hands on free compost for their gardens, courtesy of DSNY.

The city agency is opening a compost distribution site at 77-28 19th Ave. in Astoria, joining existing sites in Brooklyn and Staten Island.

The Astoria site will distribute 40-pound bags of compost — free of charge — every Wednesday from 5 p.m. to 7 p.m. and Saturday from 8 a.m. to 10 a.m. through Sept. 27.

Online pre-registration is required and opens two weeks prior to each event.

The site’s opening comes in response to “overwhelming demand and to record amounts of compostable material collected,” DSNY said in a release.

“The amount of compost collected from city residents skyrocketed this spring, with the Department collecting more than 2.5 million pounds in one week alone,” acting Sanitation Commissioner Javier Lojan said in a statement. “New Yorkers are setting out their food and yard waste at the curb, and we are thrilled to return it to them as finished compost.”

DSNY said the finished compost is garden-ready, having been certified by the U.S. Composting Council Seal of Testing Assurance program.

The “black gold” being distributed at the Astoria site is made from food and yard waste at the city’s Staten Island Compost Facility, the agency said.

The city expanded curbside composting to all five boroughs in October, but the Department of Sanitation only began enforcing fines for failing to separate food scraps and yard waste from trash on April 1.