Holiday tree still hanging around? Time to recycle it. This weekend, the city will host MulchFest 2012. Just bring your tree to any MulchFest location and it will be converted into nourishing wood chips for plants and trees in city parks, gardens, and streets. At some locations, your tree will be chipped right there on the spot so you can take it right back home in a bag for your own garden or street tree. BBG staff will be on hand at the Fort Greene Park, McCarren Park and Prospect Park sites to, uh, spread the word about mulch’s many benefits.