Green Box Mushrooms

Green Box Mushrooms holds USDA Organic, Certified Naturally Grown, and HGAP+ certifications, and produces non-GMO mushrooms. The farm carries out the full cultivation cycle on-site in Gainesville, Georgia, from creating the mycelium over a six-week period through substrate preparation, sterilization, inoculation, incubation, and final harvest. Substrate is prepared using local agricultural by-products and agri-waste, and the plastic-free bottle cultivation process reuses recycled bottles rather than discarding them. Spent substrate is converted into organic compost sold to land farmers, keeping production waste out of the waste stream. The growing rooms run year-round, and mushrooms are harvested approximately ten days after entering the growing room.