Join Toronto and Region Conservation (TRCA) at the Humber Arboretum for a free introduction to stormwater-friendly landscaping for homeowners. Learn about rain barrels, rain chains, rain gardens and permeable paving. Participants will receive a free copy of the Greening Your Grounds Homeowner’s Guide.  Register for free at trcastewardshipevents.ca. When: Wednesday April 19, 12 p.m. - 12:45 p.m.  Where: Centre for Urban Ecology, Humber Arboretum (The Humber Arboretum is located behind North Campus, The Centre for Urban Ecology is the glass building with the red door at the top of the path.)