For years, the City of St. Louis has had a recycling program for Christmas trees, see instructions here. Until January 12, bare trees can be dropped off at the lower Muny lot, above, (other drop off locations are mentioned on instructions) where they will be turned into mulch, which will be available to city residents. Please do not place trees in alley dumpsters or recycling containers. If the trees are left in the alley, they will be picked up during the monthly bulk pick up.