The Grow Room LLC
Hydroponics & Indoor Growing in O'Fallon, Missouri
4.8 (58)
| Category | Hydroponics & Indoor Growing · Consultant, Garden center |
|---|---|
| Address | 121 O'Fallon Plaza, O'Fallon, MO 63366 |
| Street | O'Fallon Plaza |
| Area | O'Fallon, Missouri |
| Phone | (636) 312-6442 |
| Google rating | 4.8 (58) |
| Source | Google Maps and public records · listed Oct 16, 2026 |
Hours
| Monday | Closed |
|---|---|
| Tuesday | 12–6 pm |
| Wednesday | 12–6 pm |
| Thursday | 12–6 pm |
| Friday | 12–6 pm |
| Saturday | 11 am–4 pm |
| Sunday | Closed |
About The Grow Room LLC
Sell Hydroponics equipment, Garden Grow Supply, and Garden Consultation.
The Grow Room LLC is a hydroponics store in O'Fallon, Missouri. It is listed at 121 O'Fallon Plaza, O'Fallon, MO 63366, which places it among the local businesses of O'Fallon that residents and visitors turn to when they need this kind of service close by. Google also lists it under consultant, garden center, which is worth knowing if you are comparing several options in the area.
The business lists hours on 5 days of the week. Typical hours are 12–6 pm. It is closed on Monday, Sunday. As with most places, expect changes around holidays; the phone number below is the fastest way to confirm. You can reach The Grow Room LLC at (636) 312-6442; calling is usually the quickest way to ask about availability, prices or directions. More information is available on its website, thegrowroomstl.com.
On Google it holds a rating of 4.8 out of 5 from 58 reviews.
How The Grow Room LLC compares with other hydroponics & indoor growing in O'Fallon
- Nearest other hydroponics & indoor growing: The Happy Grower Hydroponics (0.9 mi)
Before you buy
- Check your area's zone on the USDA Plant Hardiness Zone Map; plant tags list the coldest zone a plant survives.
- Ask whether plants were grown locally and what the nursery's guarantee covers.
Latest Google reviews
The 5 most recent reviews shown on Google Maps. Reviews belong to their authors; read all of them on Google.
Worm Food43 a year ago
What and awesome place!!! Brian and his crew are great people and instantly make you feel like family. Stopped in today for my first time and what an amazing experience!!! I found exactly what i was looking for and a deal that could not be touched by any other similar store!!
Tony Catfish a year ago
I've been growing almost 6 years. I needed to be fine tuned. With Brian's consulting service, I more than doubled my yield on the first round. Well worth the cost. Thanks Brian, you the man!
cm4tr1x 4 years ago
Great place, very friendly has all basic items you would need, store is little small but their prices make up for it. A+
TheCircus Freak 5 years ago
This place feels like home. Brian has been absolutely incredible these last few months. I am the type of person that has 100 questions, then digs deep on why. Everyone there has answered every single one, and taken the time to explain and guide me without hesitation. You can just feel the calm relaxed atmosphere there, I recommend them to everyone I meet. They'll have my business as long as I am playing in the garden.
Shearin Casagrand 5 years ago
Best customer service I have experienced in a long time. Very helpful and experienced. I will be back for sure. Kinda inspiring me to do more with my new found knowledge. Thank you for being so great to your clueless clients (like me) Can't wait to share my progress with the owners. These folks have everything... and great ideas to make your garden flourish. Very happy 😊
Frequently asked questions
Where is The Grow Room LLC located?
The Grow Room LLC is at 121 O'Fallon Plaza, O'Fallon, MO 63366, in O'Fallon, Missouri. Use the “Open in Google Maps” button on this page for directions.
What kind of business is The Grow Room LLC?
The Grow Room LLC is listed as a hydroponics store and is also tagged on Google as consultant, garden center.
What are the hours of The Grow Room LLC?
Published hours are Monday: Closed; Tuesday: 12–6 pm; Wednesday: 12–6 pm; Thursday: 12–6 pm; Friday: 12–6 pm; Saturday: 11 am–4 pm; Sunday: Closed. It is closed on Monday, Sunday. Hours can change on holidays, so call before a special trip.
Is The Grow Room LLC open on Sunday?
No, The Grow Room LLC is closed on Sunday.
What is the phone number of The Grow Room LLC?
You can call The Grow Room LLC at (636) 312-6442.
How is The Grow Room LLC rated on Google?
The Grow Room LLC has a Google rating of 4.8 out of 5 from 58 reviews.
Does The Grow Room LLC have a website?
Yes, the website of The Grow Room LLC is thegrowroomstl.com (linked on this page).
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The Happy Grower Hydroponics
Hydroponics & Indoor Growing · O'Fallon, Missouri