Posted: Mar 15, 2021 6:00 AM ET | Last Updated: March 15 New this year, Guelph will collect yard waste throughout the spring, summer and fall. The first pickups start this week for people with grey carts, but one pollinator expert says people may want to wait to clean out their gardens because pollinators and other beneficial insects are likely overwintering in hollow stems, under leaves and in the soil.(John Robertson/CBC)