Karl Hammer of Vermont Compost Company Post author By brandamiller Post date February 21, 2018 Some of our Collard City Growers — Azure, Christian and Baby Ember — visited the mecca of compost facilities in Montpelier, Vermont to talk with Karl Hammer, Founder and President of Vermont Compost Company. Share Tweet Tags Collard City Growers, WOOC 105.3 FM ← Ellie Irons’ Urban Ecology: Primroses → John Amidon from Veterans for Peace