The Cylburn Arborstum Association with partners, Baltimore City Department of Recreation and Parks, University of Maryland Extension Services, Master Gardeners, and LifeBridge Health are thrilled to host the 47th Cylburn Arboretum Market Day & Market Day Preview. Market day will be on May 9 from 8 a.m. to 2 p.m. Admission is free. See  for more information. The Market Day preview is on May 8 at 4:30 p.m. the preview  It is a ticket event at a cost of $25.