Monsanto/Bayer owns miracle gro. As someone who grew up next to their headquarters and lab campus, do not use anything that they own or invented. Which includes food dyes and additives which are sadly everywhere. 

Chesterfield residents have a joke about the color of the sky by their lab greenhouses. 

 Grandmother used miracle grow her whole life after working at a flower farm that started using miracle grow when it first came out. 

She died of lymohoma.