“Invasive Plants and their Management,” Canton Heritage Park, Canton Aug. 11-14, Thursday-Sunday, 10am-5pm/Thurs.-Sat, 10am-4pm/Sun, “47th Annual Cumberland Art & Crafts Show,” four full days of nearly 200 talented Maine artisans exhibiting their wares, $4, free/under 12, Cumberland Fairgrounds, 197 Blanchard Road, Cumberland. FMI: 207-621-2818, www.unitedmainecraftsmen.com. Aug. […]