New type of tenant in US growing like a weed

Quincy, Massachussetts

AT THE edge of an industrial park in this suburb south of Boston, past a used-car auction lot and a defunct cheese factory, is an unmarked warehouse bristling with security cameras and bustling with activity.

Until recently, the cinder-block structure was home to a wholesale florist, a granite cutter and a screen printer. Today, it is home to just one tenant: a medical marijuana operation called Ermont.