Rainbow Sherb

Founded in 2011 by Sam Usman Jr. in Lansing, Michigan.

Welcome to ProGro, Michigan's leading cannabis cultivation facility. We combine boutique-quality craftsmanship with a grand-scale vision, working with renowned genetic breeders like Archive Seed Bank and Skunkhouse Genetics. Our relentless commitment to excellence has solidified our mark in the industry, and we're on a mission to empower our Pro Gro wholesale partners to offer exceptional cannabis products at accessible value. At Pro Gro, we're not just growers; we're artisans of cannabis. From our state-of-the-art facility, we cultivate diverse strains with meticulous care, setting new standards for quality. Our ambition is to be Michigan's premier cultivation facility, redefining the cannabis experience for all. 

Mission: To pioneer access to the most authentic and highest quality cannabis for consumers – precisely when and where they need it.