Live Support
  Loading... Please wait...

With your purchase, receive at no cost:

"Thank you for the great customer service. Your Biggest Fan."

— Melinda


Grandma's Secret Garden 3.0 - 9 Plant Grow Box

Regular Price:
Special Price:
$695.00 (You save $100.00)
Free Shipping

Product Description

Grandma's Secret Garden 3.0 - 9 Plant Grow Box

Grandma's Secret Garden 3.0 is a luxurious 3 foot tall, 9 plant grow box that can grow any plant in the world. This grow box fits in almost any room in your home including closets, bedrooms, or home offices. Grandma's Secret Garden is large which is ideal for people looking to grow around 9 plants in their own home. As plants usually bend, you will be able to grow tall plants inside this hydroponics grow system.This grow box use a DWC (deep water culture) hydroponics system.

Dimensions: 36" Tall x 20" Wide x 16.5" Deep

Grows 7 pounds of dried plant matter per year!

Shipping: This product comes with a promotional FREE SHIPPING offer and is shipped via stealth shipping. This item ships fast and can be in your home within 5-7 days or less from the order date.

Shipping Prices: FREE for anywhere in the continental US. Please call 888-HYDRO-81 for shipping quotes outside the continental US, Canada, or elsewhere.

This hydroponics grow box uses a new 125w CFL grow and flower bulb lighting with a reflector for extra light output. This unit puts out a lot of lumens to help grow your plants fast and efficiently.



Grandma's Secret Garden also includes:

  • Moon dust grow and flower nutrients (2 year supply)
  • Flourawing lighting system (on yo-yo system so you can raise and lower your lights)
  • 125w grow AND flower CFL bulbs
  • 9 net pots
  • 9 starter plugs
  • Airline and stone
  • Timer
  • Ona block odor terminator (eliminates the worst odors; tried and tested true)
  • Hydroponics system with air pump and bubbler
  • Dual 80mm, powerful fans with carbon filter protected outake & intake area
  • Lockable latches
  • Dual carbon filters for extra odor control
  • Unlimited tech support
  • Lifetime warranty!
  • Free shipping!


Grandma's Secret Garden is ready to go as soon as you get it. Simply plug and play once you open the stealth packaging it comes in. Simply fill up the basin with water and plant your seeds right into the system. You will get 2 sets of bulbs for your grow and flowering stage (see instructions for more info). The box is self cooled with an intake area and powerful 80mm exhaust fan installed.

Grandma's Secret Garden is an all in one grow system. The price includes shipping during our special promo offer. Grow tomatoes and vegetables incredibly fast all year round!

All beginners will love this system as it is extremely easy to use, comes with lifetime technical support, and a lifetime warranty!

Does the Grandma's Secret Garden grow from start to finish? Can I put seeds in there?

Yes! You can put your seeds in there (see instructions) and harvest when your plants fully grow!

I am looking for a totally stealth grow box and wish to grow my plants privately. Can you guarantee this?

Yes! We have upgraded the Grandma's Secret Garden so that it is a 100% stealth growing system. This means that you won't notice much any difference in your electricity bill, you won't have any light leakage or scent leakage issues, the system is whisper quiet, and you will have the ability to lock your Grandma's Secret Garden for added security. Also, you won't smell anything with our odor protection system which includes an Ona block deoderizer and carbon filters.

Is there enough room to grow in the Grandma's Secret Garden?

Yes. The Grandma's Secret Garden supports all kinds of plants. Also, most plants bend inside of the box which adds to the space allotted to grow. It also works great for clones and mother plants.

How do you ship? How long does it take? How will I know when my package has shipped?

We typically use Fedex for our shipments. We take approximetely 2 days to build and ship your grow box. We also email tracking numbers upon shipment so that you can track your package.

I am a first time grower and have never grow with hydroponics. What if I get confused?

The Grandma's Secret Garden comes with unlimited phone and email support. It also comes with a written step-by-step instruction manual to guide you through the process. We will help you in every way we can. :)

Does the Grandma's Secret Garden give off much heat? Does it use a lot of electricity?

We have designed the Grandma's Secret Garden so that it uses the minimal amount of electricity. This grow box uses less electricity than a mini fridge. In fact, you may not even notice any change in your monthly bill. Also, the heat output is extremely low when using CFL bulbs and an intake/outtake air-flow system.

What is the Co2 boost enhancer?

The Co2 boost enhancer pumps Co2 directly into your grow box. Co2 to plants is like pure oxygen for humans. The Co2 enhancer improves growth speed by 25%!

Is growing in hydroponics better than growing in soil?

Yes it is! The only reason we offer the soil version in our drop down menu above is because some customers prefer soil. However, we recommend growing in hydroponics because it is cleaner and faster than traditional soil gardening. Also, if you do order the soil version, you will get a few different parts (IE soil pots). You should only get soil if you prefer growing in soil otherwise we recommend growing hydroponically.

What about warranty?

We offer a whopping lifetime warranty on your Grandma's Secret Garden. If you have any issues with anything at all, please contact us and we will replace your parts for free!

Is the grow box completely assembled upon delivery?

Yes. The box comes fully assembled.

I'd like to maintain privacy. Do you offer discreet billing & shipping?

Yes! Do to popular demand, we offer discreet shipping on ALL of our boxes. Also, our charge on your debit or credit card doesn't include any terms related to hydroponics. If you want extended privacy, you can use a gift card.

Do you sell any other grow systems?

Yes, we have a large selection of turnkey hydro systems throughout our online catalog.

Buy online or call to order! 888-HYDRO-81


Other Details


Find Similar Products by Category

Write your own product review

Product Reviews

Showing reviews 1-10 of 16 | Next

  1. great investment!

    Posted by noah

    as advertised had five days and girls are up already.

  2. Upgrade your old box

    Posted by Natureboy1210

    I love my box, I upgraded just by replacing 4 of the 13w CFL with 23w. Replace the 4 corner bulbs but leave 2 of the 13w in between. I also use an extra plastic box to put my reservoir on so it's closer to bulbs untill they get to tall, the existing fan works fine keeping the box cool enough. I had the 2.0 version though. Looks like they have new lighting in there.

  3. ordered

    Posted by curly

    cant wait to get it going to try tomatoes had some growing in back yard looked good on night next day big red like ants FFFFing texas gotta have fresh vegies.

  4. Grandma

    Posted by hydrogrower

    I bought it for myself to try out certain types of plants and I guess it works. I've never done hydro before nor have I heard of it but I guess this is some new technology.

  5. Got box day after tracking was sent!

    Posted by Humphrie

    Thank you people very much and I enjoy doing business with your company and look forward to more in the future..

  6. This box aint no joke

    Posted by Chako

    No bs your box is top quality. Been running 24-7 since last November.

  7. Thank you,

    Posted by Walter

    I may be new to this but I did pick the right company to work with. Mahalo and Aloha Walter

  8. It actually works.

    Posted by Susan

    I purchased a grow box from you recently. My plants are doing very well. They are approximately 25 days old and getting very big.

  9. David

    Posted by Contact

    Very happy with your product. 3 weeks in and everything's going great!

  10. Got the box.

    Posted by Jeffrey

    Recived Grandmas garden and seems to work.Thanks for support.Will let you know if order good as you say

Showing reviews 1-10 of 16 | Next