Hanging Gardens LLC grows and processes pharmaceutical-grade medical marijuana in Johnstown, Pennsylvania, using the state’s only bare-root hydroponic cultivation system. The family-owned business operates from the former Cambria Iron and Steel Works and takes a small-batch approach, flash-freezing plants at harvest and producing live extracts designed to preserve the chemistry of the fresh flower. Its products support Pennsylvania’s medical marijuana program while bringing jobs and a new kind of manufacturing to a former steelmaking site.