Indigo Ag lands massive new investment as it pushes new farming practices

By Andy Rosen

In Charlestown’s former Hood dairy plant, just outside downtown Boston, an unusual venture is taking root: a tech startup that aims to revolutionize American agriculture.

Indigo Ag, which makes seed treatments to help vital crops grow, said Tuesday it has raised $250 million in new venture capital investments, one of the largest funding rounds for a private company in Massachusetts this year.