Operation Green Merchant was the code-name for a nationwide investigation and operation targeting businesses advertising specialized horticultural equipment that was supposedly used to grow cannabis in the 90s.
Background
The DEA had decided to investigate the advertising inside the High Times and Sinsemilla Tips with the goal of shutting down the blooming indoor marijuana industry using United Parcel Service records to trace deliveries of indoor growing equipment and seeds.
The three key targets of Green Merchant were the High Times Magazine, Sinsemilla Tips Magazine and the Holland's Seed Bank owned by Nevil Schoenmakers.
References
Operation Green Merchant Wikipedia(Text) CC BY-SA