Talk about racing for the green! It seems 83 Ellicott City residents jumped at the chance to win a free rain garden this fall, and 20 lucky winners saw them installed rapid-fire - not in 80 seconds, as the time-lapse video above depicts, but in just 10 days.

As Erica Goldman explains in Chesapeake Quarterly's BayBlog, the "win a rain garden" contest was staged by Howard County as part of a larger effort to demonstrate that doing a lot of stormwater retrofits, bioretention cells (aka rain gardens), and stream restoration projects in one small watershed could have a noticeable effect on water quality. All the entrants lived around Red Hill Branch, which drains into the Patuxent River.

Funding for the contest came from the county and the state's Chesapeake and Atlantic Coastal Bays 2010 Trust Fund. The rain garden installations were overseen by Amanda Rockler of the Maryland Sea Grant extension program, with help from county engineers and experts from the nonprofit Center for Watershed Protection in Ellicott City.

Twenty rain gardens are a start, but thousands upon thousands are needed to help the Chesapeake Bay.  It'll be interesting to see if this contest spurs a new suburban lawn ethic, with homeowners vying to outdo each other in putting in the biggest, greenest rain garden on the cul de sac.

Video by Joe King, by permission Maryland Sea Grant.