Lexington's Division of Waste Management will give away free mulch starting at 8 a.m. Saturday at the city's recycling center, 360 Thompson Road (off Manchester Street). Workers will load pick-up trucks or closed-bed trailers with bucket loaders. People may also fill their own bags, barrels and buckets. Mulch is available on a first-come, first-serve basis. The giveaway will end when the supply is gone. Call LexCall at 3-1-1 for more information.