Jock Robie of Mainely Worm Bins will lead a vermiculture workshop at Merryspring Nature Center, Camden. Robie will introduce the concept of vermiculture, a method of composting waste using earthworms, during this three-hour workshop. Pre-registration is required for this session with a limit of 15 people. For costs and to sign up, please contact Merryspring at 236-2239 or by email at info@merryspring.org.