Shop Grown Rogue in Coldwater, Michigan
Your guide to the full Grown Rogue lineup at Banzen.
Nitro-Sealed glass jars, nitrogen-flushed pre-rolls, and live resin vapes. Craft Michigan indoor with the freshness locked in, stocked at 55 S. Michigan Ave.
55 S. Michigan Ave
Coldwater, MI 49036
Sunday – Saturday: 9am – 9pm
Happy Hour: 4pm – 4:30pm
Fan-Favorite Strains
Grown Rogue grows craft indoor in Bay City and packages it in their patented Nitro-Sealed glass jars so the terpenes stay locked in until the seal pops. Here's a look at what's been on the shelf.
Fan-Favorite Strains
Grown Rogue grows craft indoor in Bay City and packages it in their patented Nitro-Sealed glass jars so the terpenes stay locked in until the seal pops. Here's a look at what's been on the shelf.



Strains rotate with each harvest. Check the menu online or stop in to see what just landed.




Strains rotate with each harvest. Check the menu online or stop in to see what just landed.

The Grown Rogue Story
Craft cannabis company founded in 2016 in Medford, Oregon, by CEO Obie Strickler; now publicly traded (CSE: GRIN) and operating a Michigan facility in Bay City through its majority stake in Golden Harvests. The Michigan canopy is 100% indoor, with roughly 35,000 sq ft operational, designed for a 5,000-lb annual run of craft "A" flower. The brand is best known for its patented Nitro-Sealed packaging, which flushes the jar with nitrogen and vacuum-seals it in glass so terpenes stay locked in (Strickler describes opening one as "like opening a fresh can of vacuum-sealed coffee"). The flower-forward catalog runs Nitro-Sealed 3.5g jars, nitrogen-flushed 1g pre-rolls, prepacked eighths, bulk flower, and live resin carts and disposables.

Pick Up Grown Rogue at BANZEN Dispensary
BANZEN Dispensary
55 S. Michigan Ave
Coldwater, MI 49036
Sunday – Saturday: 9am – 9pm
Happy Hour: 4pm – 4:30pm
Banzen is the Coldwater dispensary of choice for premium cannabis, and a regular stop for terpene chasers driving in from Indiana, Ohio, and Illinois. The Nitro-Sealed jars are the sell here, you can see the bud through the glass before you buy, and the seal stays tight until you break it. Hard to overstate what that does for flavor.
Our budtenders know the current Grown Rogue rotation strain-by-strain, which Nitro jars just hit the shelf, the difference between a nitrogen-flushed pre-roll and a standard one, and which live resin vape pairs with which flower. If you're picky about freshness, this is the brand to start with.
Want to see what's currently in stock? Browse the full Grown Rogue menu and order ahead for pickup. We'll have it ready when you arrive.

What People Ask About Grown Rogue
A glass jar of cured flower that’s been flushed with nitrogen (which displaces oxygen) and vacuum-sealed before it leaves the facility. Oxygen is what degrades terpenes and dries the flower out. Pulling it out and sealing it in glass keeps the bud closer to the day it left the cure room. You can also see the actual flower through the glass before you buy, which most plastic eighth bags don’t let you do.
The Michigan supply comes from a Bay City facility with 100% indoor cultivation, roughly 35,000 sq ft of operational canopy, and the capacity to produce around 5,000 lbs of craft "A" flower per year. Grown Rogue also operates in Oregon (where they do both indoor and sun-grown), but everything you’ll find on the Banzen shelf is Michigan-grown indoor.
Grown Rogue holds a U.S. patent for nitrogen-flushed pre-rolls, the same principle as the jars, applied to a 1g pre-roll. Nitrogen displaces the oxygen in the sealed packaging, which keeps the joint fresh and prevents the slow drying out that most pre-rolls experience on the shelf. Light it weeks after purchase, and it still smokes like it was just rolled.
Two things. The packaging (glass, nitrogen, vacuum-seal) costs more than a plastic bag. And Grown Rogue cultivates as a craft operator, smaller batches, more pheno-hunting, and more attention per plant. Their own investor materials note that Nitro jars typically price around 25% above the Michigan pre-packaged state average. You’re paying for both the flower quality and the format that keeps it fresh.
Yes. All Michigan cannabis must undergo third-party lab testing through a CRA-licensed Safety Compliance Facility, covering potency, pesticides, microbials, heavy metals, and moisture and be tracked seed-to-sale via METRC before retail sale. Batch lab data is available at the point of sale at Banzen.