This weekend brings the seventh edition of the All Roads Music Festival, set for Friday night and all day Saturday in Belfast. More than 40 bands and artists, most from Maine, will perform in seven venues all over the city. In the Bangor region, the annual Big Dig for the Adopt-a-Garden program is Saturday in downtown Bangor, so if you see lots of folks planting flowers, you know why. There’s also the spring Not Your Grandma’s Flea Market, set for 9 a.m. to 5 p.m. along Front and May streets in Bangor. And BDN Outdoors columnist Aislinn Sarnacki will lead a guided hike at Fields Pond Audubon Center in Holden from 10 a.m. to noon, also on Saturday.