Grow Maxx

Grow Maxx Grow Maxx is a professional garden supply store and R/C (Radio Controlled Vehicle) store in Iron Mountain Michigan.

Permanently closed.

We stock organic nutrients and supplies to help you make your garden grow! Whether you are an outdoor gardener, indoor gardener, or both, we are here to help. Grow Maxx is here to help your garden thrive, year round, no matter what conditions or obstacles you face. Grow Maxx has everything you need to maxximize your harvests! HID lighting, MH Bulbs, HPS Bulbs, Hydroponic Supplies & Systems, Inline

Fans, Carbon Filters, Duct Work, Plant Nutrients and Supplements, Bud Boosters, Cloners, Organic Soils, OMRI, Maxx Power Hydro Controllers, and more!

09/23/2025

Today is the last day we are open to the public! Come take advantage before we're gone!

Last chance for some killer deals! Tomorrow is the last day we're open to the public. Remaining stock is 90% off!
09/22/2025

Last chance for some killer deals! Tomorrow is the last day we're open to the public. Remaining stock is 90% off!

Looking for something to keep your pond or water feature free of algae and bacteria? We have 3 gallons of Physan 20 at G...
09/19/2025

Looking for something to keep your pond or water feature free of algae and bacteria? We have 3 gallons of Physan 20 at Grow Maxx only $6.10 per gallon! Also great for orchids!

I still have a couple gems in stock! 90% off marked price is a no-brainer for a back up light on the shelf! Today and to...
09/18/2025

I still have a couple gems in stock! 90% off marked price is a no-brainer for a back up light on the shelf! Today and tomorrow!

09/15/2025

90% off all remaining stock this week!

There are still a lot of great deals at Grow Maxx! 80% off today, then we'll be open our last 3 days Sunday thru Tuesday...
09/13/2025

There are still a lot of great deals at Grow Maxx! 80% off today, then we'll be open our last 3 days Sunday thru Tuesday with sales at 90% off. Come see us one last time!

80% off all remaining inventory starts today
09/11/2025

80% off all remaining inventory starts today

70% off all remaining stock!!! Come on down and load up on these amazing deals!
09/08/2025

70% off all remaining stock!!! Come on down and load up on these amazing deals!

Temps are dropping but the deals are heating up! 60% OFF EVERYTHING STORE WIDE! 🔥
09/04/2025

Temps are dropping but the deals are heating up! 60% OFF EVERYTHING STORE WIDE! 🔥

Still lots to choose from! 50% off everything today and tomorrow! **We will be closed Sunday and Monday for the holiday*...
08/29/2025

Still lots to choose from! 50% off everything today and tomorrow! **We will be closed Sunday and Monday for the holiday**

08/28/2025

All remaining stock is now 50% off!! Don't sleep on these deals!

These LED'S were store displays. NextLight Mega Pro 650W and Nanolux LEDzx 630. Both have a lighting controller availabl...
08/26/2025

These LED'S were store displays. NextLight Mega Pro 650W and Nanolux LEDzx 630. Both have a lighting controller available as well!

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Iron Mountain, MI

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